Immunogen sequence: PSSDSLAQREH RSRMPKTGLS EPNLEIGTND KMNEISLSTA HEACWGTSSQ KLKTLGSSNL GSSEMLLSEM TCESQTCLSK KSHGQHT Highest antigen sequence identity to the following orthologs - mouse 60%, rat 69%. Has 5'-polynucleotide kinase and nicking endonuclease