passages.id: split_1_test_3524_passage
passages.type: progene_text
passages.text: One soluble KIR2D , derived from an inhibitory receptor with a long cytoplasmic tail ( KIR2DL1 ) , bound to HLA-C allotypes containing asparagine 77 and lysine 80 in the heavy chain , as expected , since these allotypes inhibit lysis by NK cells expressing KIR2DL1 .