Table 1.

Physico-chemical parameters of SARS-CoV-2 isolates studied.

SARS-CoV-2 Isolate	Length	Molecular Weight (Dalton)	Theoretical PI	Total no of −ve and +ve Aminoacids	Extinction Coefficient (M−1cm−1)	Estimated Half-Life (h)	Instability Index	Aliphatic Index	GRAVY
Wuhan	1273	141,178.47	6.24	110/103	148,960	30	33.01	84.67	−0.079
England	1273	141,169.51	6.32	109/103	150,450	30	33.03	84.67	−0.075
USA	1273	141,120.43	6.32	109/103	148,960	30	32.86	84.67	−0.77
India	1273	141,280.46.	6.35	109/103	150,450	30	32.82	84.45	−0.078
South Africa	1273	141,120.43	6.32	109/103	148,960	30	32.86	84.67	−0.077