TABLE 2.
Protein | ΔHma | ΔSmb | Tm | ΔTmc | ΔΔGd |
---|---|---|---|---|---|
kcal/mol | cal/mol/K | °C | °C | kcal/mol | |
rM180 | 176 ± 7.1 | 562.9 ± 22.6 | 40.6 ± 0.1 | ||
T21I | 102.9 ± 5.7 | 333.5 ± 18.5 | 35.3 ± 0.1 | −5.3 | −2.98 |
P41T | 144.7 ± 5.8 | 466.1 ± 23.3 | 37.5 ± 0.2 | −3.1 | −1.75 |
a ΔHm indicates enthalpy of denaturation at Tm.
b ΔSm = ΔHm/Tm.
c ΔTm = Tm(mutant) − Tm(rM180).
d ΔΔG = 0.563 (ΔSm for rM180 in kcal/mol) × ΔTm. A negative value indicates a decrease in stability.