1AMA:
reference: Domain closure in mitochondrial aspartate aminotransferase., McPhalen CA, Vincent MG, Picot D, Jansonius JN, Lesk AM, Chothia C, J Mol Biol 1992 Sep 5;227(1):197-213. PMID: 1522585

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