Toolkit/HY5

HY5

Protein Domain·Research·Since 1998

Also known as: Arabidopsis bZIP protein HY5, Arabidopsis bZIP Protein HY5, Arabidopsis HY5, ELONGATED HYPOCOTYL 5, HY5

Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

HY5 is an Arabidopsis thaliana basic leucine zipper (bZIP) transcription factor that directly binds light-responsive promoters and functions as a positive regulator of photomorphogenesis. It also mediates crosstalk between light signaling and the unfolded protein response (UPR) by negatively regulating UPR gene expression through promoter competition.

Usefulness & Problems

Why this is useful

HY5 is useful as a native plant transcriptional regulator for studying and potentially engineering light-regulated transcriptional programs in Arabidopsis. The cited evidence also supports its use for probing how light signaling interfaces with ER stress and UPR transcriptional control.

Problem solved

HY5 helps address the problem of linking external light cues to specific promoter occupancy and transcriptional outputs in plants. It also provides a defined molecular node for dissecting how light signaling antagonizes UPR gene activation through competition at a G-box-like cis-element in ERSE.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Component: A low-level protein part used inside a larger architecture that realizes a mechanism.

Techniques

No technique tags yet.

Target processes

transcription

Input: Light

Implementation Constraints

The evidence supports HY5 as an Arabidopsis bZIP transcription factor acting through direct promoter interaction, including competition with bZIP28 at a G-box-like element within ERSE. No practical details are provided here on construct architecture, expression systems, cofactors, delivery methods, or minimal functional domains for engineered use.

The supplied evidence is confined to Arabidopsis and does not provide quantitative binding affinities, kinetic properties, or domain-level engineering parameters for tool deployment. It also does not establish HY5 as an exogenous modular part or validate performance across heterologous systems, cell types, or non-plant organisms.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1expression associationsupports2017Source 3needs review

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes
Claim 2expression associationsupports2017Source 3needs review

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes
Claim 3expression associationsupports2017Source 3needs review

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes
Claim 4expression associationsupports2017Source 3needs review

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes
Claim 5expression associationsupports2017Source 3needs review

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes
Claim 6expression associationsupports2017Source 3needs review

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes
Claim 7feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 8feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 9feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 10feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 11feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 12feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 13feedback circuitsupports2017Source 1needs review

CRY and BIC form a negative-feedback circuitry that regulates each other's activity.

These results demonstrate a CRY-BIC negative-feedback circuitry that regulates the activity of each other.
Claim 14mechanistic regulationsupports2017Source 3needs review

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)
Claim 15mechanistic regulationsupports2017Source 3needs review

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)
Claim 16mechanistic regulationsupports2017Source 3needs review

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)
Claim 17mechanistic regulationsupports2017Source 3needs review

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)
Claim 18mechanistic regulationsupports2017Source 3needs review

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)
Claim 19mechanistic regulationsupports2017Source 3needs review

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)
Claim 20pathway crosstalksupports2017Source 3needs review

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression
Claim 21pathway crosstalksupports2017Source 3needs review

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression
Claim 22pathway crosstalksupports2017Source 3needs review

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression
Claim 23pathway crosstalksupports2017Source 3needs review

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression
Claim 24pathway crosstalksupports2017Source 3needs review

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression
Claim 25pathway crosstalksupports2017Source 3needs review

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression
Claim 26pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 27pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 28pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 29pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 30pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 31pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 32pathway mechanismsupports2017Source 1needs review

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters
Claim 33phenotypic effect of mutationsupports2017Source 3needs review

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress
Claim 34phenotypic effect of mutationsupports2017Source 3needs review

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress
Claim 35phenotypic effect of mutationsupports2017Source 3needs review

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress
Claim 36phenotypic effect of mutationsupports2017Source 3needs review

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress
Claim 37phenotypic effect of mutationsupports2017Source 3needs review

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress
Claim 38phenotypic effect of mutationsupports2017Source 3needs review

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress
Claim 39physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 40physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 41physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 42physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 43physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 44physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 45physiological functionsupports2017Source 1needs review

Photoreceptor co-action in activating BIC transcription may sustain blue light sensitivity of plants under broad spectra of solar radiation in nature.

suggesting a novel photoreceptor co-action mechanism to sustain blue light sensitivity of plants under the broad spectra of solar radiation in nature.
Claim 46protein stabilitysupports2017Source 3needs review

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions
Claim 47protein stabilitysupports2017Source 3needs review

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions
Claim 48protein stabilitysupports2017Source 3needs review

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions
Claim 49protein stabilitysupports2017Source 3needs review

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions
Claim 50protein stabilitysupports2017Source 3needs review

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions
Claim 51protein stabilitysupports2017Source 3needs review

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions
Claim 52regulatory effectsupports2017Source 3needs review

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants
Claim 53regulatory effectsupports2017Source 3needs review

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants
Claim 54regulatory effectsupports2017Source 3needs review

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants
Claim 55regulatory effectsupports2017Source 3needs review

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants
Claim 56regulatory effectsupports2017Source 3needs review

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants
Claim 57regulatory effectsupports2017Source 3needs review

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants
Claim 58regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 59regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 60regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 61regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 62regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 63regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 64regulatory mechanismsupports2017Source 1needs review

BIC1 and BIC2 inhibit Arabidopsis cryptochrome function by blocking blue light-dependent cryptochrome dimerization.

two negative regulators of Arabidopsis cryptochromes, Blue light Inhibitors of Cryptochromes 1 and 2 (BIC1 and BIC2), inhibit cryptochrome function by blocking blue light-dependent cryptochrome dimerization
Claim 65transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 66transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 67transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 68transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 69transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 70transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 71transcriptional regulationsupports2017Source 1needs review

Cryptochromes mediate light activation of transcription of the BIC genes.

Here we show that cryptochromes mediate light activation of transcription of the BIC genes
Claim 72transcriptional regulationsupports2017Source 1needs review

Phytochromes also mediate light activation of BIC transcription.

Surprisingly, phytochromes also mediate light activation of BIC transcription
Claim 73transcriptional regulationsupports2017Source 1needs review

Phytochromes also mediate light activation of BIC transcription.

Surprisingly, phytochromes also mediate light activation of BIC transcription
Claim 74transcriptional regulationsupports2017Source 1needs review

Phytochromes also mediate light activation of BIC transcription.

Surprisingly, phytochromes also mediate light activation of BIC transcription
Claim 75transcriptional regulationsupports2017Source 1needs review

Phytochromes also mediate light activation of BIC transcription.

Surprisingly, phytochromes also mediate light activation of BIC transcription
Claim 76transcriptional regulationsupports2017Source 1needs review

Phytochromes also mediate light activation of BIC transcription.

Surprisingly, phytochromes also mediate light activation of BIC transcription
Claim 77transcriptional regulationsupports2017Source 1needs review

Phytochromes also mediate light activation of BIC transcription.

Surprisingly, phytochromes also mediate light activation of BIC transcription
Claim 78binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 79binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 80binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 81binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 82binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 83binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 84binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 85binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 86binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 87binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 88binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 89binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 90binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 91binding specificitysupports1998Source 2needs review

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.
Claim 92light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 93light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 94light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 95light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 96light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 97light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 98light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 99light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 100light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 101light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 102light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 103light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 104light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 105light response phenotypesupports1998Source 2needs review

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants
Claim 106mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 107mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 108mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 109mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 110mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 111mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 112mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 113mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 114mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 115mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 116mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 117mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 118mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 119mechanistic modelsupports1998Source 2needs review

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.
Claim 120molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 121molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 122molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 123molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 124molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 125molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 126molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 127molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 128molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 129molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 130molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 131molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 132molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 133molecular functionsupports1998Source 2needs review

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.
Claim 134molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 135molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 136molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 137molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 138molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 139molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 140molecular interactionsupports1998Source 2needs review

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 141mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 142mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 143mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 144mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 145mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 146mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 147mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 148mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 149mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 150mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 151mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 152mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 153mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 154mutant phenotypesupports1998Source 2needs review

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.
Claim 155regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 156regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 157regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 158regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 159regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 160regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 161regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 162regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 163regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 164regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 165regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 166regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 167regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 168regulatory rolesupports1998Source 2needs review

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box
Claim 169regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 170regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 171regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 172regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 173regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 174regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 175regulatory rolesupports1998Source 2needs review

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression
Claim 176subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 177subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 178subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 179subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 180subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 181subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 182subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 183subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 184subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 185subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 186subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 187subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 188subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 189subcellular localizationsupports1998Source 2needs review

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized
Claim 190tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 191tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 192tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 193tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 194tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 195tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 196tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 197tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 198tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 199tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 200tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 201tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 202tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.
Claim 203tissue generalitysupports1998Source 2needs review

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.

Approval Evidence

3 sources17 linked approval claimsfirst-pass slugs elongated-hypocotyl-5, hy5
ELONGATED HYPOCOTYL 5 (HY5)

Source:

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling

Source:

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression

Source:

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.

Source:

expression associationsupports

Enhanced ER stress tolerance of hy5 plants is attributed to higher expression of UPR genes.

This enhanced tolerance of hy5 plants can be attributed to higher expression of UPR genes

Source:

mechanistic regulationsupports

HY5 negatively regulates the unfolded protein response by competing with bZIP28 for binding to a G-box-like element in ERSE.

HY5 negatively regulates the UPR by competing with basic leucine zipper 28 (bZIP28) to bind to the G-box-like element present in the ER stress response element (ERSE)

Source:

pathway crosstalksupports

HY5 mediates crosstalk between light signaling and the unfolded protein response, acting positively in light signaling and negatively on UPR gene expression.

we propose a molecular mechanism of crosstalk between the UPR and light signaling, mediated by HY5, which positively mediates light signaling, but negatively regulates UPR gene expression

Source:

pathway mechanismsupports

Cryptochromes activate BIC gene transcription by suppressing COP1 activity, resulting in activation of HY5 associated with chromatins of the BIC promoters.

by suppressing the activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), resulting in activation of the transcription activator ELONGATED HYPOCOTYL 5 (HY5) that is associated with chromatins of the BIC promoters

Source:

phenotypic effect of mutationsupports

Mutation of HY5 leads to tolerance to ER stress.

mutation of the ELONGATED HYPOCOTYL 5 (HY5), a key component of light signaling, leads to tolerance to ER stress

Source:

protein stabilitysupports

HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions.

we found that HY5 undergoes 26S proteasome-mediated degradation under ER stress conditions

Source:

regulatory effectsupports

Increasing light intensity elevates ER stress sensitivity in plants.

we demonstrate that increasing light intensity elevates the ER stress sensitivity of plants

Source:

binding specificitysupports

HY5 binds specifically to G-box DNA sequences and not to other examined light-responsive elements.

In vitro DNA binding studies suggested that HY5 can bind specifically to the G-box DNA sequences but not to any of the other LREs present in the light-responsive promoters examined.

Source:

light response phenotypesupports

Phytochrome-mediated red light- and far-red light-reversible low-fluence induction of G-box-containing promoters is diminished in hy5 plants.

the characteristic phytochrome-mediated red light- and far-red light-reversible low-fluence induction of the G-box-containing promoters was diminished specifically in hy5 plants

Source:

mechanistic modelsupports

HY5 may directly interact with the G-box in promoters of light-inducible genes to mediate light-controlled transcriptional activity.

These results suggest that HY5 may interact directly with the G-box in the promoters of light-inducible genes to mediate light-controlled transcriptional activity.

Source:

molecular functionsupports

HY5 is a basic leucine zipper transcription factor.

The Arabidopsis HY5 gene has been defined genetically as a positive regulator of photomorphogenesis and recently has been shown to encode a basic leucine zipper type of transcription factor.

Source:

molecular interactionsupports

HY5 directly interacts with light-responsive promoters.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression

Source:

mutant phenotypesupports

High-irradiance light activation of G-box-containing synthetic promoters and the RBCS-1A promoter is significantly compromised in the hy5 mutant.

High-irradiance light activation of two synthetic promoters containing either the consensus G-box alone or the G-box combined with the GATA motif (another LRE) and the native Arabidopsis ribulose bisphosphate carboxylase small subunit gene RBCS-1A promoter, which has an essential copy of the G-box, was significantly compromised in the hy5 mutant.

Source:

regulatory rolesupports

HY5 is involved in light regulation of transcriptional activity of promoters containing the G-box.

HY5 is constitutively nuclear localized and is involved in light regulation of transcriptional activity of the promoters containing the G-box

Source:

regulatory rolesupports

HY5 mediates light control of gene expression.

Arabidopsis bZIP Protein HY5 Directly Interacts with Light-Responsive Promoters in Mediating Light Control of Gene Expression

Source:

subcellular localizationsupports

HY5 is constitutively nuclear localized.

Here, we report that HY5 is constitutively nuclear localized

Source:

tissue generalitysupports

The effect of the hy5 mutation on high-irradiance light activation of gene expression occurs in both photosynthetic and nonphotosynthetic tissues.

The hy5 mutation's effect on the high-irradiance light activation of gene expression was observed in both photosynthetic and nonphotosynthetic tissues.

Source:

Comparisons

Source-backed strengths

The evidence identifies HY5 as a genetically defined positive regulator of photomorphogenesis and a bZIP transcription factor that directly interacts with light-responsive promoters. Additional mechanistic evidence shows that HY5 negatively regulates the UPR by competing with bZIP28 for binding to a G-box-like element in ERSE, and hy5 plants display enhanced ER stress tolerance associated with higher UPR gene expression.

Ranked Citations

  1. 1.
    StructuralSource 1The Plant Journal2017Claim 7Claim 8Claim 9

    Extracted from this source document.

  2. 2.
    StructuralSource 2The Plant Cell1998Claim 78Claim 79Claim 80

    Extracted from this source document.

  3. 3.
    StructuralSource 3Proceedings of the National Academy of Sciences2017Claim 1Claim 2Claim 3

    Extracted from this source document.