Salt bridges in the hyperthermophilic protein Ssh10b are resilient to temperature increases.

Abstract excerpt

A double mutant cycle (DMC) approach was employed to estimate the effect of temperature on the contribution of two highly conserved salt bridges to protein stability in the hyperthermophilic protein Ssh10b. The coupling free energy were 2.4 +/- 0.4 kJ/mol at 298 K and 2.2 +/- 0.4 kJ/mol at 353 K for Glu-54/Arg-57, and 6.0 +/- 0.2 kJ/mol at 298 K and 5.9 +/- 0.6 kJ/mol at 353 K for Glu-36/Lys-68. The stability...

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