Immunogen sequence: DSETIRLPYE EGELLEYLDA EELPPILVDL LEKSQVNIFH CGCVIAEIRD YRQSSNMKSP GYQSRHILLR PTMQTLICDV HSITSDNHKW TQED Highest antigen sequence identity to the following orthologs: Mouse - 99%, Rat - 99%. Required for MAP kinase p38 (MAPK11, MAPK12,