passages.id: split_1_test_3071_passage
passages.type: progene_text
passages.text: We show that approximately 4.5 % of the individuals of a Caucasoid population bear a recombinant allele of KIR3DP1 , officially designed KIR3DP1*004 , that associates tightly with gene duplications of KIR3DP1 , KIR2DL4 and KIR3DL1 / KIR3DS1 .