Introduction: Along with the clade specific mutations, these variants have their own sets of characteristics mutations including several mutations in the
S glycoprotein like Delta69-70, Delta144-145,
N501Y,
A570D,
P681H,
T716I,
S982A,
D1118H in the Alpha variant;
D80A,
D215G, Delta241-243,
K417N,
E484K,
N501Y,
A701V in the Beta variant;
L18F,
T20N,
P26S,
D138Y,
R190S,