2HQ3:
reference: Structural studies of Apo Nosl, an accessory protein of the nitrous oxide reductase system: insights from structural homology with MerB, a mercury resistance protein., Taubner LM, McGuirl MA, Dooley DM, Copie V, Biochemistry. 2006 Oct 10;45(40):12240-52. PMID: 17014077

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