1GX3:
reference: The structure of arylamine N-acetyltransferase from Mycobacterium smegmatis--an enzyme which inactivates the anti-tubercular drug, isoniazid., Sandy J, Mushtaq A, Kawamura A, Sinclair J, Sim E, Noble M, J Mol Biol 2002 May 10;318(4):1071-83. PMID: 12054803

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