4DCF:
reference: Crystallographic portrayal of different conformational states of a Lys49 phospholipase A(2) homologue: Insights into structural determinants for myotoxicity and dimeric configuration., Ullah A, Souza TA, Betzel C, Murakami MT, Arni RK, Int J Biol Macromol. 2012 May 11. PMID: 22584077

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