1IPD:
reference: Three-dimensional structure of a highly thermostable enzyme, 3-isopropylmalate dehydrogenase of Thermus thermophilus at 2.2 A resolution., Imada K, Sato M, Tanaka N, Katsube Y, Matsuura Y, Oshima T, J Mol Biol 1991 Dec 5;222(3):725-38. PMID: 1748999

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