1M4T:
reference: The catalytic cycle of biosynthetic thiolase: a conformational journey of an acetyl group through four binding modes and two oxyanion holes., Kursula P, Ojala J, Lambeir AM, Wierenga RK, Biochemistry 2002 Dec 31;41(52):15543-56. PMID: 12501183

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