Fig. 1: Sequence analysis of the English variant mutations.
From: Inferring the stabilization effects of SARS-CoV-2 variants on the binding with ACE2 receptor
a Fractions of sequenced viral samples having amino acid N in position 501 of the spike protein (orange) vs those having Y (blue) for two different time intervals and in different countries. b Same as panel (a), but comparing samples with residue V70 (orange) and samples for which deletion of residue 70 took place (blue). c Same as in panel (b) but considering only sequences where residue 501 is an N. d Phylogenetic tree of the SARS-CoV-2 variants. Leaves are colored in light green if the corresponding spike sequence has an N in position 501, in dark blue in case of a T, and in yellow for a Y.
