A.CTLA-4 B.PD-1 C.FcRⅡB D.CD94/NKG2A E.KIR
A.FcγRⅡ-B B.KIR C.CTLA-4 D.PD-1 E.gp49B1
A.內(nèi)段有ITIM B.其必須與BCR同時(shí)被交聯(lián) C.抗BCR抗體可經(jīng)其引發(fā)抑制信號(hào) D.Ag-Ab復(fù)合物可經(jīng)其引發(fā)抑制信號(hào) E.CTLA-4可經(jīng)其引發(fā)抑制信號(hào)