Phosphoglycerate kinase acts as a futile cycle at high temperature.
Phosphoglycerate kinase acts as a futile cycle at high temperature.
复制标题
磷酸甘油酸激酶在高温下充当无效循环。
DOI:
10.1099/mic.0.000542
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Kouril T
中科院分区:
文献类型:
--
作者:
Kouril T
In (hyper)thermophilic organisms metabolic processes have to be adapted to function optimally at high temperature. We compared the gluconeogenic conversion of 3-phosphoglycerate via 1,3-bisphosphoglycerate to glyceraldehyde-3-phosphate at 30 °C and at 70 °C. At 30 °C it was possible to produce 1,3-bisphosphoglycerate from 3-phosphoglycerate with phosphoglycerate kinase, but at 70 °C, 1,3-bisphosphoglycerate was dephosphorylated rapidly to 3-phosphoglycerate, effectively turning the phosphoglycerate kinase into a futile cycle. When phosphoglycerate kinase was incubated together with glyceraldehyde 3-phosphate dehydrogenase it was possible to convert 3-phosphoglycerate to glyceraldehyde 3-phosphate, both at 30 °C and at 70 °C, however, at 70 °C only low concentrations of product were observed due to thermal instability of glyceraldehyde 3-phosphate. Thus, thermolabile intermediates challenge central metabolic reactions and require special adaptation strategies for life at high temperature.
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影响因子:
5.6
作者:
Zhang Y;Kouril T;Snoep JL;Siebers B;Barberis M;Westerhoff HV
通讯作者:
Westerhoff HV
影响因子:
3.6
作者:
K.Matsubara;Y.Yokooji;H.Atomi;T.Imanaka
通讯作者:
T.Imanaka
影响因子:
--
作者:
Alexander Schramm;M. Kohlhoff;Reinhard Hensel
通讯作者:
Reinhard Hensel
影响因子:
3.7
作者:
Figueiredo AS;Kouril T;Esser D;Haferkamp P;Wieloch P;Schomburg D;Ruoff P;Siebers B;Schaber J
通讯作者:
Schaber J
影响因子:
3.1
作者:
Gauss, Dominik;Schoenenberger, Bernhard;Wohlgemuth, Roland
通讯作者:
Wohlgemuth, Roland