引用本文:
吴也凡, 李春芳, 曾定, 洪亮, 林国栋, 蔡启瑞. ATP与Fe4S4*络合的31P-NMR研究[J]. 物理化学学报,
1991, 7(04): 400-403.
doi:
10.3866/PKU.WHXB19910405
Citation: Wu Ye-Fan, Li Chun-Fang, Zeng Ding, Hong Liang, Lin Guo-Dong, Cai Qi-Rui. 31P-NMR Studies on Complexation of Fe4S4* with ATP[J]. Acta Physico-Chimica Sinica, 1991, 7(04): 400-403. doi: 10.3866/PKU.WHXB19910405
Citation: Wu Ye-Fan, Li Chun-Fang, Zeng Ding, Hong Liang, Lin Guo-Dong, Cai Qi-Rui. 31P-NMR Studies on Complexation of Fe4S4* with ATP[J]. Acta Physico-Chimica Sinica, 1991, 7(04): 400-403. doi: 10.3866/PKU.WHXB19910405
ATP与Fe4S4*络合的31P-NMR研究
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关键词:
- ATP; Fe4S4*簇; 络合
English
31P-NMR Studies on Complexation of Fe4S4* with ATP
Abstract:
Chemical modeling studies of ATP driven electron-transfer in Nitrogenase reaction show that adenylate compounds can complex with [Fe_4S_4(SPh)_4]~(2-) cluster, resulting in down field shifting of the ~(31)P NMR peaks of α-、β- and γ-PO_4 about 13.2ppm. 8.3ppm and 28.3ppm, respectively (in its DMF-D_2O(3:2v/v) solution). in down-field shifting of the ~(31)p NMR peaks of a-and β-PO_4 of ADP by about 15.77ppm and 2.71ppm respectively. (in DMF-D_2O (3:2v/v) solution). The above experimental results is quite similar to the observations of Mortenson et al in Fe-protein system. This may be taken as the strong evidence for supporting the view that all of the MgATP and the MgADP can coordinate to the Fe_4S_4~* center of the Fe-protein through the PO_4 groups, rather than other parts of theprotein.
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Key words:
- ATP; Fe4S4* Cluster; Complexation
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