3ZPX:
reference: The short form of the recombinant CAL-A-type lipase UM03410 from the smut fungus Ustilago maydis exhibits an inherent trans-fatty acid selectivity., Brundiek H, Sass S, Evitt A, Kourist R, Bornscheuer UT, Appl Microbiol Biotechnol. 2012 Apr;94(1):141-50. doi: 10.1007/s00253-012-3903-9., Epub 2012 Feb 1. PMID: 22294433

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