Result: The wavelet analysis simultaneously displays the location, frequency, and mutational density at different scales and identified a cluster of moderately frequent mutations involving 14 amino acids in a serine/arginine-rich motif of
N (
Ser180Ile,
Ser183Tyr,
Ser188Leu,
Ser190Asn,
Ser193Ile,
Ser194Leu,
Arg195Lys,
Ser197Leu,
Ser202Asn,
Arg203Lys,
Gly204Arg,
Thr205Ile,
Ala208Val, and
Arg209Thr) and the C-terminal end of the
nsp13 prote