2GW5:
reference: Crystal structure of LIR-2 (ILT4) at 1.8 A: differences from LIR-1 (ILT2) in regions implicated in the binding of the Human Cytomegalovirus class I MHC homolog UL18., Willcox BE, Thomas LM, Chapman TL, Heikema AP, West AP Jr, Bjorkman PJ, BMC Struct Biol. 2002 Oct 11;2:6. PMID: 12390682

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).