3M3B:
reference: Roles of glutamates and metal ions in a rationally designed nitric oxide reductase based on myoglobin., Lin YW, Yeung N, Gao YG, Miner KD, Tian S, Robinson H, Lu Y, Proc Natl Acad Sci U S A. 2010 Apr 26. PMID: 20421510

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