2QHS:
reference: Structural basis of octanoic acid recognition by lipoate-protein ligase B., Kim DJ, Lee SJ, Kim HS, Kim KH, Lee HH, Yoon HJ, Suh SW, Proteins. 2007 Dec 12;70(4):1620-1625. PMID: 18076036

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