1KQW:
reference: Identification and structural analysis of a zebrafish apo and holo cellular retinol-binding protein., Calderone V, Folli C, Marchesani A, Berni R, Zanotti G, J Mol Biol 2002 Aug 16;321(3):527-35. PMID: 12162964

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