Positive test controls include: Rat lung, Rat spleen. Immunogen sequence: GMYQCKGSQN KSKPLQVYYR MCQNCIELNA ATISGFLFAE IVSIFVLAVG VYFIAGQDGV RQSRASDKQT LLPNDQLYQP LKDREDDQYS HLQGNQLRRN. CD3G is the CD3-gamma polypeptide, which together with CD3-epsilon, -