Histone Chaperone ASF1A (ASF1A) Antibody – Rabbit Polyclonal

This gene encodes a member of the H3/H4 family of histone chaperone proteins and is similar to the anti-silencing function-1 gene in yeast. The protein is a key component of a histone donor complex that functions in nucleosome assembly. It interacts with histones H3 and H4, and functions together with a chromatin assembly factor during DNA replication and repair. [provided by RefSeq, Jul 2008]

ASF1A: Histone chaperone that facilitates histone deposition and histone exchange and removal during nucleosome assembly and disassembly. Cooperates with chromatin assembly factor 1 (CAF-1) to promote replication-dependent chromatin assembly and with HIRA to promote replication-independent chromatin assembly. Required for the formation of senescence-associated heterochromatin foci (SAHF) and efficient senescence-associated cell cycle exit. Interacts with histone H3 (including both histone H3.1 and H3.3) and histone H4. Interacts with the CHAF1A, CHAF1B and RBBP4 subunits of the CAF-1 complex. Interacts with CABIN1, HAT1, HIRA, NASP, TAF1, TLK1, TLK2 and UBN1. Ubiquitously expressed. Belongs to the ASF1 family.

Protein type: DNA repair, damage; Histone-binding

Chromosomal Location of Human Ortholog: 6q22.31

Cellular Component: nuclear chromatin; nucleoplasm; nucleus; protein complex

Molecular Function: chromatin binding; histone binding; protein binding

Biological Process: chromatin modification; DNA repair; DNA replication-dependent nucleosome assembly; DNA replication-independent nucleosome assembly; muscle cell differentiation; negative regulation of chromatin silencing; nucleosome assembly; osteoblast differentiation; transcription, DNA-dependent