cl00074: H2A Superfamily (this model, PSSM-Id:277381 is obsolete)
Histone 2A; H2A is a subunit of the nucleosome. The nucleosome is an octamer containing two H2A, H2B, H3, and H4 subunits. The H2A subunit performs essential roles in maintaining structural integrity of the nucleosome, chromatin condensation, and binding of specific chromatin-associated proteins.
Jiyao W et al.(2023). "The conserved domain database in 2023.",