1JQB:
reference: Structural basis for the enhanced thermal stability of alcohol dehydrogenase mutants from the mesophilic bacterium Clostridium beijerinckii: contribution of salt bridging., Bogin O, Levin I, Hacham Y, Tel-Or S, Peretz M, Frolow F, Burstein Y, Protein Sci 2002 Nov;11(11):2561-74. PMID: 12381840

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