Fig. 4From: Mutations in SARS-CoV-2 structural proteins: a global analysisThe heat map of mutations among E and M proteins of SARS-CoV-2 as of January 2022. These indicate the rate of mutation per 100 amino acids. The highest frequency rate of mutations among the E and M AASs occurred in the regions of 7 to 14 AA, and 66 to 88 AA, respectivelyBack to article page