Table 1. Melting temperature and enthalpy of the labeled Tm.

Sample	Melting Temperature (°C)	Enthalpy (kcal/mol)
WT Tm	57±2	52±5
13/17*	51±2	47±5
153/157*	53±2	46±5
188/192*	55±2	58±5
268/272*	54±2	54±5

*Labeled with HO-1944.