Immunogen sequence: TLQFVCGDRG FYFSRPASRV SRRSRGIVEE CCFRSCDLAL LETYCATPAK SERDVSTPPT VLPDNFPRYP VGKFFQYDTW KQSTQRLRRG LPALLRARRG HVLAKELEAF REAKRHRPLI ALPTQD. The IGFs are mitogenic, polypeptide growth factors that stimulate the proliferation and surviv