CAF-1_p150 is a polypeptide subunit of CAF-1, which functions in depositing newly synthesised and acetylated histones H3/H4 into chromatin during DNA replication and repair [1]. CAF-1_p150 includes the HP1 interaction site, the PEST, KER and ED interacting sites. CAF-1_p150 interacts directly with newly synthesised and acetylated histones through the acidic KER and ED domains. The PEST domain is associated with proteins that undergo rapid proteolysis [2].

1: Structural basis of HP1/PXVXL motif peptide interactions and HP1 localisation to heterochromatin. Thiru A, Nietlispach D, Mott HR, Okuwaki M, Lyon D, Nielsen PR, Hirshberg M, Verreault A, Murzina NV, Laue ED; EMBO J. 2004;23:489-499. PMID:14765118

2: The methyl-CpG binding protein MBD1 interacts with the p150 subunit of chromatin assembly factor 1. Reese BE, Bachman KE, Baylin SB, Rountree MR; Mol Cell Biol. 2003;23:3226-3236. PMID:12697822