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. 2010 Oct 7;285(52):40593–40603. doi: 10.1074/jbc.M110.131136

TABLE 2.

Thermodynamic parameters obtained from thermal denaturation of rM180 and mutant amelogenins

Data were analyzed based on Ref. 24.

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.