A protein complex proposed to be involved in replication-independent nucleosome assembly, by promoting histone deposition onto DNA. For example, in Saccharomyces, the complex contains Hir1p, Hir2p, Hir3p, and Hpc2p.
Source:
GOC:elh,
GOC:mah,
PMID:16303565,
PMID:17180700