4NG5:
reference: Effects of cavities at the nicotinamide binding site of liver alcohol dehydrogenase on structure, dynamics and catalysis., Yahashiri A, Rubach JK, Plapp BV, Biochemistry. 2014 Feb 11;53(5):881-94. doi: 10.1021/bi401583f. Epub 2014 Jan 30. PMID: 24437493

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