A number of ELISA Kits are available that target gammaH2ax, an alias of the protein, H2A histone family member X. The human protein, encoded by the gene H2AFX, is a member of the Histone H2A family. The protein's cellular localization is indicated to be nuclear. Additional synonyms or past names for this protein may include: H2A.X, H2A/X, H2AX. Homology is conserved in other species, such as Mouse, Rat, Zebrafish, Frog, Chicken.