passages.id: split_4_validation_734_passage
passages.type: progene_text
passages.text: We developed a polymerase chain reaction - sequence specific primer ( SSP ) - based assay to genotype 194 UC patients and 216 control individuals for 14 KIR genes , the HLA-Cw ligand epitopes of the KIR2D receptors and a polymorphism of the lectin - like - activating receptor NKG2D .