کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2068023 1077938 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Function of the F1-motor (F1-ATPase) of ATP synthase by apolar-polar repulsion through internal interfacial water
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوفیزیک
پیش نمایش صفحه اول مقاله
Function of the F1-motor (F1-ATPase) of ATP synthase by apolar-polar repulsion through internal interfacial water
چکیده انگلیسی
At the β-P end of ADP · Mg occurs an inorganic phosphate, Pi. This Pi resides at the base of a water-filled cleft that functions like an aperture to focus, into an aqueous chamber, a competition for hydration (an apolar-polar repulsion) between charged phosphate and hydrophobic surface of the γ-rotor. Two means available for the phosphate and the hydrophobic surface to improve their hydration free energies are physically to separate by rotation of the γ-rotor or chemically to combine Pi with ADP to form less charged ATP. This proposal derives from calculated changes in Gibbs free energy for hydrophobic association of amino acid side chains and chemical modifications thereof and from experimentally demonstrated water-mediated repulsion between hydrophobic and charged sites that resulted from extensive studies on designed elastic-contractile model proteins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cell Biology International - Volume 30, Issue 1, January 2006, Pages 44-55
نویسندگان
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