Immunogen sequence: SYHPGNSCST TTPGPVIQVP EASVTIDLEM WSPGGRICAE KPADPVDLSP RCNLTVKDLL LSGSSGDLQQ HHLGASYLLR PGAGHCQELV Highest antigen sequence identity to the following orthologs: Mouse - 56%, Rat - 54%. CREB3L3 is a liver-specific transcription factor