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固氮酶单,双钼铁钼辅基的制备和特性
引用本文:黄河清,林庆梅.固氮酶单,双钼铁钼辅基的制备和特性[J].应用与环境生物学报,1997,3(3):258-262.
作者姓名:黄河清  林庆梅
基金项目:国家自然科学基金,国家教委回国留学人员基金
摘    要:固氮酶单、双钼铁钼辅基的制备与N-甲基甲酰胺碱度有关.质子激发X射线发射光谱和电感耦合等离子体发射光谱分析技术测定单、双钼铁钼辅基的钼铁流元素组成比值均为1∶6∶6.在紫外可见光谱区内,单、双钼铁钼辅基均无特征吸收峰,不含高柠檬酸盐。

关 键 词:固氮酶  铁钼辅基  单、双钼铁硫簇  光谱分析

PREPARATION AND CHARACTERIZATION OF FeMo COFACTORS CONTAINING SINGLE AND DOUBLE Mo FROM NITROGENASE
Abstract:Preparation of FeMo cofactors containing single and double Mo was related with basicity of N-methylformamide. The mininal elemental composition of FeMo cofactor containing single and double Mo was found to be Mo: 6Fe: 6S by using inductively coupled plasma and proton induced X-ray emission analytical technique. F6Mo cofsctors containing single and double Mo showed featureless absorbence peak in the ultraviolet and visible spectral range and did not contain homocitrate.
Keywords:Nitrogenase  FeMo cofactor  Fe-S clusters containing single and double Mo  spectral analysis
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