Stereochemical course of the methylation of the polygalacturonic acid carboxyl groups of pectin.
Stereochemical course of the methylation of the polygalacturonic acid carboxyl groups of pectin.
复制标题
果胶聚半乳糖醛酸羧基甲基化的立体化学过程。
DOI:
10.1016/0003-9861(81)90006-0
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发表时间:
1981
影响因子:
3.9
通讯作者:
Floss,HG
中科院分区:
文献类型:
--
作者:
Woodard,RW;Weaver,J;Floss,HG
The steric course of the methyl group transfer to polygalacturonic acid to form the methyl ester group in pectin was studied usingS-adenosylmethionine (AdoMet) carrying a methyl group made chiral by labeling with1H,2H,3H, in an asymmetric arrangement. The incubation of the two diastereomers of this substrate with a particulate enzyme preparation obtained fromPhaseolus aureus(mung bean) shoots gave the corresponding pectins. These were degraded in a series of stereochemically unambiguous reactions that converted the methoxy group into the methyl group of acetate, which was then analyzed for its configuration. The results indicate that the transfer of the methyl group from the sulfur of AdoMet to the oxygen of the carboxyl group proceeds with inversion of configuration of the methyl group.
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影响因子:
15
作者:
L. Mascaro;R. Horhammer;S. Eisenstein;L. Seller;K. Mascaro;H. Floss
通讯作者:
H. Floss
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
R. Woodard;L. Mascaro;R. Hoerhammer;S. Eisenstein;H. Floss
通讯作者:
H. Floss
DOI:
10.1016/s0021-9258(19)70536-5
发表时间:
1980-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
R. Woodard;M. Tsai;H. Floss;P. Crooks;J. Coward
通讯作者:
R. Woodard;M. Tsai;H. Floss;P. Crooks;J. Coward
影响因子:
4.8
作者:
H. Kauss;W. Hassid
通讯作者:
W. Hassid
影响因子:
1.8
作者:
D. Arigoni;F. Lynen;J. Rétey
通讯作者:
J. Rétey