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首页> 外文期刊>Biochemistry >Study of effect of molecular mobility in chromatophore membranes of the bacterium E. shaposhnikovii on processes of photoinduced electron transport using the NMR-Spin-Echo method with isotope substitution and dehydration
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Study of effect of molecular mobility in chromatophore membranes of the bacterium E. shaposhnikovii on processes of photoinduced electron transport using the NMR-Spin-Echo method with isotope substitution and dehydration

机译：利用同位素取代和脱水的NMR-Spin-Echo方法研究Shaposhnikovii细菌的色谱膜中分子迁移率对光诱导电子传输过程的影响

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摘要

The effect of dehydration and ^sup 2^H^sub 2^O/H^sub 2^O isotope substitution on electron transport reactions and relaxation of proton-containing groups was studied in chromatophore membranes of Ectothiorhodospira shaposhnikovii. During dehydration (including isotope substitution of hydrate water) of preliminarily dehydrated isolated photosynthetic membranes there was a partial correlation between hydration intervals within which activation of electron transport from high-potential cytochrome c to photoactive bacteriochlorophyll dimer P890 of photosynthetic reaction center and variation of spin-lattice and spin-spin proton relaxation time was observed. Partial correlation between hydration intervals can be considered as evidence of correlation between mobility of non-water proton-containing groups with proton relaxation frequency 10^sup 8^ sec^sup -1^ with efficiency of electron transfer at the donor side of the chain.[PUBLICATION ABSTRACT]
机译：研究了脱水和2 ^ H ^ sub 2 ^ O / H ^ sub 2 ^ O同位素的取代和电子对硫代rhodospira shaposhnikovii色谱膜中电子传输反应和质子基团弛豫的影响。在初步脱水的分离的光合作用膜的脱水过程中（包括水合物的同位素取代），在水合作用间隔中，电子从高能细胞色素c转移到光合作用的光活性细菌叶绿素二聚体P890的活化与水合间隔之间存在部分相关性。观察到晶格和自旋自旋质子弛豫时间。水合间隔之间的部分相关可以被认为是质子弛豫频率为10 ^ sup 8 ^ sec ^ sup -1 ^的非含水质子基团的迁移率与链供体侧电子转移效率之间的相关性证据。 [出版物摘要]

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