Immunogen sequence: MNRAFSRKKD KTWMHTPEAL SKHFIPYNAK FLGSTEVEQP KGTEVVRDAV RKLKFARHIK KSEGQKIPKV ELQISIYGVK ILEPKTKEVQ HNCQLHRISF CADDKTDKRI FTFICKDSES NKHLCYVFDS. The prompt clearance of cells undergoing apoptosis is critical during embryonic developmen