2QG6: Crystal Structure Of Human Nicotinamide Riboside Kinase (Nrk Complex With Nicotinamide Mononucleotide (Nmn)
reference: Crystal structure of human nicotinamide riboside kinase., Khan JA, Xiang S, Tong L, Structure. 2007 Aug;15(8):1005-13. PMID: 17698003

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