Crystal Structure Of The Hepatitis C Virus Ns5B Rna-Dependent Rna Polymerase C316N In Complex With 2-(4-Fluorophenyl)-N-Methyl-5-[3-({2-Methyl-1-Oxo-1-[(1,3,4-Thiadiazol-2-Yl)Amino]Propan-2-Yl}Carbamoyl)Phenyl]-1-Benzofuran-3-Carboxamide