1RW5:
reference: Solution structure of human prolactin., Teilum K, Hoch JC, Goffin V, Kinet S, Martial JA, Kragelund BB, J Mol Biol 2005 Aug 26;351(4):810-23. PMID: 16045928

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