1DJB:
reference: Structure and kinetics of the beta-lactamase mutants S70A and K73H from Staphylococcus aureus PC1., Chen CC, Smith TJ, Kapadia G, Wasch S, Zawadzke LE, Coulson A, Herzberg O, Biochemistry 1996 Sep 24;35(38):12251-8. PMID: 8823158

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