3LR9:
reference: Synchrotron X-ray-Induced Photoreduction of Ferric Myoglobin Nitrite Crystals Gives the Ferrous Derivative with Retention of the O-Bonded Nitrite Ligand., Yi J, Orville AM, Skinner JM, Skinner MJ, Richter-Addo GB, Biochemistry. 2010 Jun 28. PMID: 20568729

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