1H2B:
reference: The structure of an alcohol dehydrogenase from the hyperthermophilic archaeon Aeropyrum pernix., Guy JE, Isupov MN, Littlechild JA, J Mol Biol 2003 Aug 29;331(5):1041-51. PMID: 12927540

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