Article
Thermodynamic characterization of the partially unfolded state of Ca(2+)-loaded bovine alpha-lactalbumin: evidence that partial unfolding can precede Ca2+ release.
Biochemistry - 24 Dec 1996
Vanderheeren G, Hanssens I, Meijberg W, Van Aerschot A
Abstract excerpt
The thermal denaturation of bovine alpha-lactalbumin (BLA) was studied at pH 7.5 and at various Ca2+ concentrations using near-UV circular dichroism and differential scanning calorimetry. The Ca2+ dependence of the denaturation equilibria proves that, in the transition region, partially unfolded alpha-lactalbumin consists of a mixture of Ca(2+)-loaded and Ca(2+)-free protein. The thermodynamic parameters of the...
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