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2005 | 3 | 4 | 674-682
Tytuł artykułu

Molecule dynamics and combined QM/MM study on one-carbon unit transfer reaction catalyzed by GAR transformylase

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Both a molecule dynamic study and a combined quantum mechanics and molecule mechanics (QM/MM) study on Glycinamide ribonucleotide transformylase (GAR Tfase) catalytic mechanism are presented. The results indicate a direct one-carbon unit transfer process but not a stepwise mechanism in this reaction. The residues near the active center can fix the cofactor (N10-formyltetrahydrofolate) and GAR in proper relative positions by a H-bond network. The transition state and the minimum energy pathway are located on the potential energy surface. After all the residues (including H2O molecules) are removed from the system the activation energy has increased from 145.1 kJ/mol to 243.3 kJ/mol, and the formly transfer reaction is very hard to achieve. The interactions between coenzyme, GAR and residues near the reactive center are discussed as well.
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
3
Numer
4
Strony
674-682
Opis fizyczny
Daty
wydano
2005-12-01
online
2005-12-01
Twórcy
autor
  • School of Chemistry and Materials Science, Yantai Normal University, 264025, Yantai, China, qiaoqa@sdu.edu.cn
autor
  • Library of Yantai Normal University, 264025, Yantai, China
  • Institute of Theoretical Chemistry, Shandong University, 250100, Jinan, China
autor
  • School of Chemistry and Materials Science, Yantai Normal University, 264025, Yantai, China
autor
  • Department of Physics, Yantai Normal University, 264025, Yantai, China
autor
  • Department of Physics, Yantai Normal University, 264025, Yantai, China
Bibliografia
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  • [4] C. Klein, P. Chen, J. H. Arevalo, E. A. Stura, A. Marolewski, M. S. Warren, S. J. Benkovic and I. A. Wilson: “Towards Structure-based Drug Design: Crystal Structure of a Multisubstrate Adduct Complex of Glycinamide Ribonucleotide Transformylase at 1.96 Å Resolution”, J. Mol. Biol., Vol. 249(1), (1995), pp. 153. http://dx.doi.org/10.1006/jmbi.1995.0286[Crossref]
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_BF02475196
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