Table 1.

Summary of DSC analysis of S-D614 and S-D614G after different treatments

Condition	Sample	Enthalpy of unfolding (kcal mol−1)	Tm1 (°C)	Tm2 (°C)
Fresh	S-D614	1580		66.9
	S-D614G	2250		68.8
37 °C, 6 days	S-D614	997		67.0
	S-D614G	1560		68/9
4 °C, 6 days	S-D614	853	48.2	66.8
	S-D614G	2120	49.0	68.9