1B6U:
reference: Crystal structure of the human p58 killer cell inhibitory receptor (KIR2DL3) specific for HLA-Cw3-related MHC class I., Maenaka K, Juji T, Stuart DI, Jones EY, Structure Fold Des 1999 Apr 15;7(4):391-8. PMID: 10196125

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