2OZ0:
reference: Mechanistic and structural studies of H373Q flavocytochrome b2: effects of mutating the active site base., Tsai CL, Gokulan K, Sobrado P, Sacchettini JC, Fitzpatrick PF, Biochemistry. 2007 Jul 3;46(26):7844-51. Epub 2007 Jun 12. PMID: 17563122

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