Immunogen sequence: GTTKRFPETV LARCVKYTEI HPEMRHVDCQ SVWDAFKGAF ISKHPCNITE EDYQPLMKLG TQTVPCNKIL LWSRIKDLAH QFTQVQRDMF TLEDTLLGYL ADDLTWCGEF NTSKINYQSC PDWRKDC. CD38 is a multifunctional ectoenzyme and type II transmembrane glycoprotein involved in vario