کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1180490 | 962855 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal stability of proteins does not correlate with the energy of intramolecular interactions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Small monomeric proteins from mesophilic and thermophilic organisms were studied. They have close structural and physical and chemical properties but vary in thermal stability. A thermodynamic analysis of heat unfolding was made and integral enthalpy of unfolding (ΔHunf), heat capacity of hydration (ΔCphyd) and enthalpy of hydration (ΔHhyd) and of the buried surface area (ΔASA) of nonpolar and polar groups as well as the enthalpy of disruption of intramolecular interaction (ΔHint in gas phase) at 298 K were determined. The absence of correlation between protein thermostability and energetic components suggests that regulatory mechanism of protein thermal stabilization has entropic nature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics - Volume 1784, Issue 11, November 2008, Pages 1830–1834
Journal: Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics - Volume 1784, Issue 11, November 2008, Pages 1830–1834
نویسندگان
Nikolay N. Khechinashvili, Sergey A. Volchkov, Artem V. Kabanov, Guido Barone,