Fig. 2From: Neurological pathogenesis of SARS-CoV-2 (COVID-19): from virological features to clinical symptomsConsideration of the origin of SARS-CoV-2; common sequence of various coronaviruses and SARS-CoV-2. a The RBD within the S1 subunit has a common amino acid sequence between SARS-CoV-2, RATG13, and Pangolin-CoV. The cleavage site has an amino acid sequence (RRAR) unique to SARS-CoV-2. (Modified from Andersen et al. [31])Back to article page