Immunogen sequence: IPGGLSEAKP ATPEIQEIVD KVKPQLEEKT NETYGKLEAV QYKTQVVAGT NYYIKVRAGD NKYMHLKVFK SLPGQNEDLV Highest antigen sequence identity to the following orthologs: Mouse - 60%, Rat - 65%. The cystatin superfamily encompasses proteins that contain m