passages.id: split_1_test_2202_passage
passages.type: progene_text
passages.text: To examine how allelic polymorphism diversifies KIR haplotypes with similar or identical combinations of KIR genes , we devised methods for discriminating alleles of KIR2DL1 , - 2DL3 , - 3DL1 , and - 3DL2 .