Flexibility, diversity, and cooperativity: pillars of enzyme catalysis.
Flexibility, diversity, and cooperativity: pillars of enzyme catalysis.
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灵活性,多样性和合作性:酶催化的支柱。
DOI:
10.1021/bi201486f
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发表时间:
2011-12-06
期刊:
影响因子:
2.9
通讯作者:
Hammes-Schiffer, Sharon
中科院分区:
文献类型:
--
作者:
Hammes, Gordon G.;Benkovic, Stephen J.;Hammes-Schiffer, Sharon
This brief review discusses our current understanding of the molecular basis of enzyme catalysis. A historical development is presented, beginning with steady state kinetics and progressing through modern fast reaction methods, NMR, and single molecule fluorescence techniques. Experimental results are summarized for ribonuclease, aspartate aminotransferase, and especially dihydrofolate reductase (DHFR). Multiple intermediates, multiple conformations, and cooperative conformational changes are shown to be an essential part of virtually all enzyme mechanisms. In the case of DHFR, theoretical investigations have provided detailed information about the movement of atoms within the enzyme-substrate complex as the reaction proceeds along the collective reaction coordinate for hydride transfer. A general mechanism is presented for enzyme catalysis that includes multiple intermediates and a complex, multidimensional standard free energy surface. Protein flexibility, diverse protein conformations, and cooperative conformational changes are important features of this model.
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DOI:
10.1126/science.1198542
发表时间:
2011-04-08
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Bhabha G;Lee J;Ekiert DC;Gam J;Wilson IA;Dyson HJ;Benkovic SJ;Wright PE
通讯作者:
Wright PE
影响因子:
56.9
作者:
Boehr, David D.;McElheny, Dan;Wright, Peter E.
通讯作者:
Wright, Peter E.
影响因子:
2.9
作者:
FASELLA, P;HAMMES, GG
通讯作者:
HAMMES, GG
DOI:
10.1073/pnas.1111252108
发表时间:
2011-08-23
影响因子:
11.1
作者:
Adamczyk, Andrew J.;Cao, Jie;Warshel, Arieh
通讯作者:
Warshel, Arieh
影响因子:
2.9
作者:
Hammes, GG
通讯作者:
Hammes, GG