5YGU:
reference: DapF stabilizes the substrate-favoring conformation of RppH to stimulate its RNA-pyrophosphohydrolase activity in Escherichia coli., Wang Q, Zhang D, Guan Z, Li D, Pei K, Liu J, Zou T, Yin P, Nucleic Acids Res. 2018 Jun 21. pii: 5042035. doi: 10.1093/nar/gky528. PMID: 29931175

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