1GIE:
reference: Three-dimensional structure of rat surfactant protein A trimers in association with phospholipid monolayers., Palaniyar N, McCormack FX, Possmayer F, Harauz G, Biochemistry. 2000 May 30;39(21):6310-6. PMID: 10828943

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