2DLI:
reference: Crystal structure of the HLA-Cw3 allotype-specific killer cell inhibitory receptor KIR2DL2., Snyder GA, Brooks AG, Sun PD, Proc Natl Acad Sci U S A 1999 Mar 30;96(7):3864-9. PMID: 10097129

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