Unambiguous stereochemical course of rabbit liver fructose bisphosphatase hydrolysis.
Unambiguous stereochemical course of rabbit liver fructose bisphosphatase hydrolysis.
复制标题
兔肝果糖双磷酸酶水解的明确立体化学过程。
作者:
P. Domanico;J. Rahil;S. Benkovic
The stereochemical course of rabbit liver fructose bisphosphatase (EC 3.1.3.11) was determined by hydrolyzing the substrate analogue (Sp)-[1-18O]fructose 1-phosphorothioate 6-phosphate in H(2)17O, incorporating the chiral, inorganic phosphorothioate product into adenosine 5'-O-(2-thiotriphosphate) (ATP beta S), and analyzing the isotopic distribution of 18O in ATP beta S by 31P NMR. The result indicates that the 1-phosphoryl group is transferred with inversion of configuration. A series of single-turnover experiments ruled out an acyl phosphate intermediate in the hydrolysis. Consequently, fructose bisphosphatase catalyzes the hydrolysis of fructose 1,6-bisphosphate via a direct transfer of the phosphoryl moiety to water.
影响因子:
2.9
作者:
Gonzalez,MA;Webb,MR;Welsh,KM;Cooperman,BS
通讯作者:
Cooperman,BS
DOI:
--
发表时间:
1981
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Saini,MS;Buchwald,SL;VanEtten,RL;Knowles,JR
通讯作者:
Knowles,JR