摘要
在紫外可见光谱区内，固氮酶铁钼辅基〔（Ｍｏ_２Ｆｅ_（１２）Ｓ_（１２））４－〕均无特征吸收峰，不含高柠檬酸盐。含双钼的铁硫簇〔（Ｍｏ_２Ｆｅ_（６～１２）Ｓ_（６～１２））^（１～４）－〕的电荷数、颜色与该金属簇中的亚铁量成对应关系，并都有较高的生物重组活性．
FeMo cofactor (Mo_2 Fe_(12)S_(12)4-of nitrogenase showed featureless absorbance peak in the ultraviolet and visible spectral range and did not contain homocitrate. The numbers of charge and kinds of colour with clusters (Mo2Fe(6￣12)S_(6￣12)(1～4)-of ironsulfur containing double molybdenum were corresponded with their ferrous contents.They all had very high biological combining activities.
关键词
固氮酶
铁钼辅基
重组活性
理化特性
FeMo co, Fe-s clusters of Double-Mo, Charge and spectra, Combine activity
