Recombinant proteins for H2A histone family member V are available from various sources. In humans, this protein has a Uniprot ID of Q71UI9 and has an annotated function: 'Variant histone H2A which replaces conventional H2A in a subset of nucleosomes.' This protein is 128 amino acids in length and 13.6 kilodaltons in mass. It has been designated a subcellular localization as: nuclear. This protein is encoded by the gene H2AFV. Other names also exist, such as: histone H2A.V, H2A.F/Z, histone H2A.F/Z, purine-rich binding element protein B. As many as 5 isoforms have been named. This protein is conserved in other species, including: mouse, rat.