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  Indian J Med Microbiol
 

Figure 3: Amino acid mutations and their frequency in different regions of S proteins of SARS-CoV-2 isolates from India. SP: Signal peptide, NTD: N-terminal domain, RBD: Receptor binding domain, PC: Protease cleavage site, FP: Fusion peptide, HR1: Heptad repeat 1, HR2: heptad repeat 2, TM: Transmembrane domain, CT: Cytoplasm domain

Figure 3: Amino acid mutations and their frequency in different regions of S proteins of SARS-CoV-2 isolates from India. SP: Signal peptide, NTD: N-terminal domain, RBD: Receptor binding domain, PC: Protease cleavage site, FP: Fusion peptide, HR1: Heptad repeat 1, HR2: heptad repeat 2, TM: Transmembrane domain, CT: Cytoplasm domain