CHAF1AChromatin assembly factor 1 subunit A is a protein that in humans is encoded by the CHAF1A gene.FunctionChromatin assembly factor I is a nuclear complex consisting of p50, p60, and p150 subunits that assembles histone tetramers onto replicating DNA in vitro.InteractionsCHAF1A has been shown to interact with: ASF1A, ASF1B, BLM, CBX5, and MBD1.