79 RdRp/TF2a Asp618 2.63 −20.71 13.40 −0.17 −4.84 −0.01 −4.85 Arg553 −3.80 −6.52 7.55 −0.69 −2.68 −0.78 −3.46 Lys551 −2.23 −0.80 2.23