FEATURES

FAMILY

DESCRIPTION

Also known as H31T_HUMAN, H3-4, H3FT, HIST3H3. Core component of nucleosome. 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. The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. Interacts with TONSL; CHAF1A and CHAF1B (PubMed:33857403).

EXTERNAL LINKS

H3-4

Histone H3.1t

H3-4

Molecular Synopsis