Toolkit/H3K27me3

H3K27me3

Protein Domain·Research·Since 2008

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

Summary

H3K27me3 is a histone H3 lysine 27 trimethylation mark examined in Arabidopsis as one of four chromatin modifications associated with light-regulated transcription. In the cited study, changes in H3K27me3 were analyzed in relation to changing light conditions and gene expression.

Usefulness & Problems

Why this is useful

H3K27me3 is useful as an epigenetic readout for studying how changing light environments are linked to transcriptional regulation in plants. The cited evidence supports its use in correlating chromatin state with light-responsive gene expression and photoreceptor-dependent signaling.

Source:

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription

Problem solved

This mark helps address the problem of how light signals are connected to chromatin-level regulation of transcription in Arabidopsis. Specifically, the study uses H3K27me3 to examine whether histone modification changes form part of light-controlled gene regulation.

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 available evidence supports use in Arabidopsis under changing light conditions with parallel measurement of transcription and histone modification state. No construct architecture, delivery method, exogenous cofactor requirement, or protein-domain engineering details are provided in the supplied material.

The supplied evidence describes H3K27me3 primarily as an observed endogenous histone mark rather than an engineered biological tool. No evidence is provided here for causal manipulation, construct design, quantitative performance, or validation beyond the cited Arabidopsis light-response context.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 2functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 3functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 4functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 5functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 6functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 7functional rolesupports2008Source 1needs review

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription
Claim 8mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 9mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 10mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 11mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 12mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 13mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 14mechanistic involvementsupports2008Source 1needs review

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.
Claim 15physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 16physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 17physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 18physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 19physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 20physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 21physiological relevancesupports2008Source 1needs review

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments
Claim 22regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 23regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 24regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 25regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 26regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 27regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 28regulatory relationshipsupports2008Source 1needs review

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.
Claim 29temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.
Claim 30temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.
Claim 31temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.
Claim 32temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.
Claim 33temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.
Claim 34temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.
Claim 35temporal stabilitysupports2008Source 1needs review

H3K9ac patterns are set up very early and are relatively stable during Arabidopsis seedling development.

Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development.

Approval Evidence

1 source4 linked approval claimsfirst-pass slug h3k27me3
four selected histone modifications (H3K4me3, H3K9ac, H3K9me2, and H3K27me3)

Source:

functional rolesupports

Light-regulated changes in histone modifications may be an intricate part of light-controlled gene transcription.

our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription

Source:

mechanistic involvementsupports

Distinct photoreceptor systems mediate the effects of different light qualities on histone modifications.

Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications.

Source:

physiological relevancesupports

Variations in histone modifications may be an important physiological component of plant responses to changing light environments.

it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments

Source:

regulatory relationshipsupports

The examined histone modifications and gene transcription were cooperatively regulated in response to changing light environments.

We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments.

Source:

Comparisons

Source-backed strengths

The cited work places H3K27me3 within a comparative framework alongside H3K4me3, H3K9ac, and H3K9me2, enabling analysis of cooperative chromatin responses to light. Evidence also indicates that distinct photoreceptor systems mediate effects of different light qualities on histone modifications, supporting physiological relevance in plant light responses.

Ranked Citations

  1. 1.
    StructuralSource 1PLANT PHYSIOLOGY2008Claim 1Claim 2Claim 3

    Extracted from this source document.