passages.id: split_1_test_2828_passage
passages.type: progene_text
passages.text: To generate an experimental model for exploring the function , expression pattern , and developmental regulation of human Ig - like activating and inhibitory receptors , we have generated transgenic mice using two human genomic clones : 52N12 ( a 150 - Kb clone encompassing the leukocyte Ig - like receptor ( LILR ) B1 ( ILT2 ) , LILRB4 ( ILT3 ) , and LILRA1 ( LIR6 ) genes ) and 1060P11 ( a 160 - Kb clone that contains ten killer cell Ig - like receptor ( KIR ) genes ) .