A case study of 2,2-dimethylthiazolidine as locked cis proline amide bond: synthesis, NMR and molecular modeling studies of a delta-conotoxin EVIA peptide analog.
A case study of 2,2-dimethylthiazolidine as locked cis proline amide bond: synthesis, NMR and molecular modeling studies of a delta-conotoxin EVIA peptide analog.
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2,2-二甲基噻唑烷作为锁定顺式脯氨酸酰胺键的案例研究:δ-芋螺毒素 EVIA 肽类似物的合成、NMR 和分子模型研究。
DOI:
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发表时间:
2004
影响因子:
3.2
通讯作者:
P. Dumy
中科院分区:
文献类型:
--
作者:
S. Chierici;M. Jourdan;Mélanie Figuet;P. Dumy
The delta-conotoxin EVIA from the Conus ermineus venom, a recently characterized toxin, exhibits cis-trans isomerism of the Leu12-Pro13 bond associated with the triggering of its biological activity. In this paper we use the pseudoproline concept to target the presumed bioactive cis conformation. We report the design and the synthesis of loop 2 analogs from residue 8 to 18 containing either the cis-inducing Cys(PsiMe,MePro)13 unit or the natural proline residue. NMR studies in water and molecular modeling allowed us to identify the amide bond "locked" in a cis conformation for as in the suggested bioactive form of the natural toxin.
影响因子:
15
作者:
Wei-jun Zhang;A. Berglund;J. Kao;J. Couty;M. Gershengorn;G. Marshall
通讯作者:
Wei-jun Zhang;A. Berglund;J. Kao;J. Couty;M. Gershengorn;G. Marshall
影响因子:
2.9
作者:
Wedemeyer, WJ;Welker, E;Scheraga, HA
通讯作者:
Scheraga, HA