1SZG:
reference: Altered Substrate Specificity in Flavocytochrome b(2): Structural Insights into the Mechanism of l-Lactate Dehydrogenation(,)., Mowat CG, Wehenkel A, Green AJ, Walkinshaw MD, Reid GA, Chapman SK, Biochemistry 2004 Jul 27;43(29):9519-26. PMID: 15260495

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