p9 RNA/DNA binding activity N4141 – Q4253 (VRLQ'AGNA) nsp10 complex with nsp14: replication fidelity A4254 – Q4392 (PMLQ'SADA) nsp11 short peptide at the end of orf1a S4393 – V4405 (end of orf1a) nsp12 RNA-dependent RNA polymer