Response to: The mechanism for GTP-mediated RNA capping by the SARS-CoV-2 NiRAN domain remains unresolved
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The SARS-CoV-2 polymerase NiRAN domain initiates RNA capping. Previous results showed that both GTP and GDP can be utilized by NiRAN to yield GpppA together with RNAylated nsp9 (RNA-nsp9); however, the G-pocket substrate selection and the working mechanism of ... ...