Immunogen sequence: MASADELTFH EFEEATNLLA DTPDAATTSR SDQLTPQGHV AVAVGSGGSY GAEDEVEEES DKAALLQEQQ QQQQPGFWTF SYYQSFFDVD TSQVLDRI Highest antigen sequence identity to the following orthologs: Mouse - 76%, Rat - 73%. The function of YIPF2 remains unknown.