Structure of the SARS-CoV nsp12 polymerase bound to nsp7 and nsp8 co-factors

The pathogenic human coronaviruses SARS- and MERS-CoV can cause severe respiratory disease. Here the authors present the 3.1Å cryo-EM structure of the SARS-CoV RNA polymerase nsp12 bound to its essential co-factors nsp7 and nsp8, which is of interest for antiviral drug development.