1LCS:
reference: Structure and mechanism of a coreceptor for infection by a pathogenic feline retrovirus., Barnett AL, Wensel DL, Li W, Fass D, Cunningham JM, J Virol 2003 Feb;77(4):2717-29. PMID: 12552012

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