2QJT:
reference: Bifunctional NMN Adenylyltransferase/ADP-Ribose Pyrophosphatase: Structure and Function in Bacterial NAD Metabolism., Huang N, Sorci L, Zhang X, Brautigam CA, Li X, Raffaelli N, Magni G, Grishin NV, Osterman AL, Zhang H, Structure. 2008 Feb;16(2):196-209. PMID: 18275811

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