Immunogen: Reacts with a 17 residue sequence [EQHLESPVPSAPGALAG] found in the exon-3-encoded region in the human PUMA-alpha and PUMA-beta forms of the protein. Recognizes both forms of the protein. Percent identity by BLAST analysis: Human, Marmoset, Panda, Pig (100%); Horse (94%); Mouse, Rat (88%).