Acts as a histone chaperone in nucleosome assembly.
Subcellular locations: Nucleus, Cytoplasm
Present in the cytoplasm and excluded from the nucleus during G0/G1 phase, then relocates to the nucleus by the time cells are in S phase . Phosphorylated form localizes in the cytoplasm during the G0/G1 transition, whereas dephosphorylation leads to relocalization into the nucleus at the G1/S-boundary .
Ubiquitous. Biallelically expressed in fetal and adult tissues. Highest levels in testis.