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Histone H3.3

UniProtKB accession:  P84243
Grouped By:  Matching UniProtKB accession
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Polymer Entities matching query 90
Go to UniProtKB:  P84243
UniProtKB description:  Variant histone H3 which replaces conventional H3 in a wide range of nucleosomes in active genes. Constitutes the predominant form of histone H3 in non-dividing cells and is incorporated into chromatin independently of DNA synthesis. Deposited at sites of nucleosomal displacement throughout transcribed genes, suggesting that it represents an epigenetic imprint of transcriptionally active chromatin. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.
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Structure Features
Determination Methodology


Sequence Features
Number of Source Taxonomies


Experimental Features
Experimental Method
Resolution


Organisms
Organism
Taxonomy


Protein Domains
SCOP/SCOPe Domain
CATH Domain
ECOD Domain
PFAM Domain
InterPro Domain
[ 11+ ]


Function
GO Molecular Function
GO Biological Process
[ 17+ ]
GO Cellular Component
[ 8+ ]
Disease Association
[ 34+ ]