Extended Data Fig. 4: The purification of SARS-CoV-2 helicase.

a, The SDS-PAGE gel of SARS-CoV-2 helicase. The left lane: marker; the right lane: SARS-CoC-2 Nsp-13 (helicase) b, Size-exclusion chromatography profile of SARS-CoV-2 helicase. The uncropped scan of gel was shown in Supplementary Fig. 1.