THEORETICAL INTERPRETATION OF THE VARIATIONS OF SOME PHYSICAL PARAMETERS WITHIN THE [2FE-2S] FERREDOXIN GROUP
THEORETICAL INTERPRETATION OF THE VARIATIONS OF SOME PHYSICAL PARAMETERS WITHIN THE [2FE-2S] FERREDOXIN GROUP
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DOI：
10.1016/0005-2795(79)90091-6
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发表时间：
1979-01-01
期刊：
影响因子：
--
通讯作者：
GAYDA, JP
中科院分区：
文献类型：
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作者：
BERTRAND, P;GAYDA, JP
提出了一个模型来解释还原[2Fe-2S]铁氧还蛋白基团内某些物理参数的变化。根据这个模型，主要的影响结果从一个可变的混合的一些d轨道的Fe 2+离子由于菱形畸变的活性位点具有相同的几何特征，但不同的强度，为每种蛋白质。一些特殊的实验结果，如肾上腺铁氧还蛋白和恶臭假单胞菌铁氧还蛋白的轴向EPR谱和恶臭假单胞菌铁氧还蛋白的电场梯度张量的解释没有假设的性质与其他铁氧还蛋白的显着不同，如已在文献中提出的。
A model is proposed to explain the variation of some physical parameters within the reduced [2Fe-2S] ferredoxin group. According to this model, the main effects result from a variable mixing of some d orbitals of the Fe2+ ion owing to rhombic distortion of the active site having the same geometrical character, but different in intensity, for each protein. Some peculiar experimental results such as the axial EPR spectra of adrenal ferredoxin and Pseudomonas putida ferredoxin and the electric field gradient tensor of P. putida ferredoxin are explained without assuming properties drastically different from those of the other ferredoxins, as had been suggested in the literature.