کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10883135 | 1078355 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modulation of the mitochondrial permeability transition by cyclophilin D: Moving closer to F0-F1 ATP synthase?
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیوفیزیک
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![عکس صفحه اول مقاله: Modulation of the mitochondrial permeability transition by cyclophilin D: Moving closer to F0-F1 ATP synthase? Modulation of the mitochondrial permeability transition by cyclophilin D: Moving closer to F0-F1 ATP synthase?](/preview/png/10883135.png)
چکیده انگلیسی
Cyclophilin D was recently shown to mask an inhibitory site of the mitochondrial permeability transition pore (PTP) for phosphate, and to constitutively bind F0-F1 ATP synthase resulting in the slowing of ATP synthesis and hydrolysis rates, thus regulating matrix adenine nucleotide levels. Here we review the striking similarities of the factors affecting the threshold for PTP induction, to those affecting binding of phosphate to formerly proposed sides on F1-ATPase affecting ATP hydrolytic activity, including critical arginine residues, matrix pH, [Mg2+], adenine nucleotides and proton motive force. Based on these similarities, we scrutinize the hypothesis that in depolarized mitochondria exhibiting reversal of F0-F1 ATP synthase operation, the genetic ablation of cyclophilin D or its inhibition by cyclosporin A results in accelerated proton pumping by ATP hydrolysis, opposing a further decrease in membrane potential and promoting high matrix phosphate levels, both negatively affecting the probability of PTP opening.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mitochondrion - Volume 12, Issue 1, January 2012, Pages 41-45
Journal: Mitochondrion - Volume 12, Issue 1, January 2012, Pages 41-45
نویسندگان
Christos Chinopoulos, Vera Adam-Vizi,