Immunogen sequence: NKHHSGIAKT QKEGEDASLY SKRYNQSMVT AELQRLAEKQ AARQYSPSSH INLLTQQVTN LNLATGIINR SSASAPPTLR PIISPSGP Highest antigen sequence identity to the following orthologs: Mouse - 85%, Rat - 83%. Polyglutamylase which preferentially modifies alpha