Peptide sequence: QLDHCVFTQT KITSPSQRPK TPPTDTTMYM ELPNAKPRSL SPAHKHHSQA Sequence homology: Human: 100%. KIR2DL5A and KIR2DL5B are Killer cell immunoglobulin-like receptors (KIRs), transmembrane glycoproteins expressed by natural killer cells and subsets