4QBU:
reference: A polyketide synthase acyltransferase domain structure suggests a recognition mechanism for its hydroxymalonyl-acyl carrier protein substrate., Park H, Kevany BM, Dyer DH, Thomas MG, Forest KT, PLoS One. 2014 Oct 23;9(10):e110965. doi: 10.1371/journal.pone.0110965., eCollection 2014. PMID: 25340352

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