1CDH:
reference: Structures of an HIV and MHC binding fragment from human CD4 as refined in two crystal lattices., Ryu SE, Truneh A, Sweet RW, Hendrickson WA, Structure 1994 Jan 15;2(1):59-74. PMID: 8075984

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