Toolkit/LOV-TAP

LOV-TAP

Multi-Component Switch·Research·Since 2012

Also known as: light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP)

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

Summary

LOV-TAP is an artificial light-activable allosteric protein constructed by ligating the AsLOV2-Jα photoswitch to the tryptophan repressor TrpR. It is designed to regulate protein-DNA association by coupling light-triggered changes in the LOV module to structural and electrostatic changes in the interdomain region that alter DNA binding.

Usefulness & Problems

Why this is useful

LOV-TAP is useful as a genetically encoded light-responsive switch for controlling DNA binding with a LOV-based photosensory input. The cited study specifically supports its value for probing how photoinduced structural and electrostatic changes can regulate protein-DNA association.

Problem solved

LOV-TAP addresses the problem of making DNA binding responsive to light by fusing a photoswitchable LOV domain to a DNA-binding protein. The available evidence indicates that it was developed to control TrpR-associated DNA binding through photoinduced allosteric regulation.

Problem links

Need precise spatiotemporal control with light input

Derived

LOV-TAP is an artificial light-activable allosteric protein construct formed by ligating the AsLOV2-Jα photoswitch to the tryptophan repressor TrpR. It is designed to control DNA binding through light-induced structural and electrostatic changes in the LOV-linked interdomain region.

Taxonomy & Function

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: multi component delivery burdenimplementation constraint: spectral hardware requirementoperating role: actuatorswitch architecture: cleavageswitch architecture: multi componentswitch architecture: uncaging

LOV-TAP consists of a domain fusion between AsLOV2-Jα and TrpR, and its function depends on the LOV chromophore FMN and the reactive Cys450 residue that forms the light-induced adduct. Beyond this composition and photochemical requirement, the supplied evidence does not describe construct architecture details, host systems, delivery methods, or assay conditions.

The supplied evidence comes from a single 2012 computer simulation study, so support is mechanistic and computational rather than broad experimental validation. No quantitative performance metrics, illumination parameters, expression context, or independent replication are provided in the supplied evidence.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 2compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 3compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 4compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 5compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 6compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 7compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 8compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 9compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 10compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 11compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 12compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 13compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 14compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 15compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 16compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 17compositionsupports2012Source 1needs review

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli
Claim 18mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 19mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 20mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 21mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 22mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 23mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 24mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 25mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 26mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 27mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 28mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 29mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 30mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 31mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 32mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 33mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 34mechanismsupports2012Source 1needs review

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core
Claim 35mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 36mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 37mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 38mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 39mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 40mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 41mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 42mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 43mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 44mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 45mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 46mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 47mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 48mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 49mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 50mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 51mechanismsupports2012Source 1needs review

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.
Claim 52mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 53mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 54mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 55mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 56mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 57mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 58mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 59mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 60mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 61mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 62mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 63mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 64mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 65mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 66mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 67mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 68mechanismsupports2012Source 1needs review

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface
Claim 69mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 70mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 71mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 72mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 73mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 74mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 75mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 76mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 77mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 78mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 79mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 80mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 81mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 82mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 83mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 84mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.
Claim 85mechanismsupports2012Source 1needs review

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.

Approval Evidence

1 source5 linked approval claimsfirst-pass slug lov-tap
the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP)

Source:

compositionsupports

LOV-TAP is an artificial protein construct in which AsLOV2-Jα is ligated to TrpR.

the artificial protein construct light-oxygen-voltage (LOV)-tryptophan-activated protein (TAP), in which the LOV-2-Jα photoswitch of phototropin1 from Avena sativa (AsLOV2-Jα) has been ligated to the tryptophan-repressor (TrpR) protein from Escherichia coli

Source:

mechanismsupports

After photoexcitation, Cys450-FMN adduct formation in the AsLOV2-Jα binding pocket induces cleavage of the peripheral Jα-helix from the LOV core.

Cys450-FMN-adduct formation in the AsLOV2-Jα-binding pocket after photoexcitation induces the cleavage of the peripheral Jα-helix from the LOV core

Source:

mechanismsupports

In the dark state, the AsLOV2-Jα photoswitch exerts a repulsive electrostatic force on the DNA surface, leading to distortion of the hairpin region and disruption of LOV-TAP from DNA.

in the dark state the AsLOV2-Jα photoswitch remains inactive and exerts a repulsive electrostatic force on the DNA surface. This leads to a distortion of the hairpin region, which finally relieves its tension by causing the disruption of LOV-TAP from the DNA.

Source:

mechanismsupports

Light activation changes the polarity of the LOV photoswitch and promotes electrostatic attraction of LOV-TAP onto the DNA surface.

causing a change of its polarity and electrostatic attraction of the photoswitch onto the DNA surface

Source:

mechanismsupports

Unfolding and flexibilization of the interdomain hairpin-like helix-loop-helix region enables condensation of LOV-TAP onto the DNA surface.

This goes along with the flexibilization through unfolding of a hairpin-like helix-loop-helix region interlinking the AsLOV2-Jα- and TrpR-domains, ultimately enabling the condensation of LOV-TAP onto the DNA surface.

Source:

Comparisons

Source-backed strengths

The reported mechanism links a defined photochemical event, Cys450-FMN adduct formation in AsLOV2-Jα, to Jα-helix cleavage from the LOV core and subsequent changes in DNA association. The study further proposes a coherent mechanistic model in which light increases LOV-TAP polarity, promotes electrostatic attraction to DNA, and enables condensation onto the DNA surface through unfolding and flexibilization of a hairpin-like interdomain region.

LOV-TAP and GFP-PHR-caspase8/Flag-CIB1N-caspase8 address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: photocleavage; same primary input modality: light

Compared with PA-Cre 3.0

LOV-TAP and PA-Cre 3.0 address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: photocleavage; same primary input modality: light

Compared with photocaged arabinose

LOV-TAP and photocaged arabinose address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: photocleavage; same primary input modality: light

Ranked Citations

  1. 1.
    StructuralSource 1Proteins Structure Function and Bioinformatics2012Claim 17Claim 16Claim 16

    Extracted from this source document.