The folding of knotted proteins: insights from lattice simulations

作者: Patrícia F N Faísca , Rui D M Travasso , Tiago Charters , Ana Nunes , Marek Cieplak

DOI: 10.1088/1478-3975/7/1/016009

关键词:

摘要: We carry out systematic Monte Carlo simulations of Gō lattice proteins to investigate and compare the folding processes two model whose native structures differ from each other due presence a trefoil knot located near terminus one protein chains. show that time knotted fold is larger than unknotted this difference in particularly striking temperature region below optimal temperature. Both display similar transition temperatures, which indicative thermal stabilities. By using probability reaction coordinate as an estimator progression we have found formation mainly late event our shallow system.

参考文章(50)
William R. Taylor, A deeply knotted protein structure and how it might fold Nature. ,vol. 406, pp. 916- 919 ,(2000) , 10.1038/35022623
George I. Makhatadze, Peter L. Privalov, Energetics of protein structure. Advances in Protein Chemistry. ,vol. 47, pp. 307- 425 ,(1995) , 10.1016/S0065-3233(08)60548-3
J. I. Sulkowska, P. Sulkowski, P. Szymczak, M. Cieplak, Stabilizing effect of knots on proteins Proceedings of the National Academy of Sciences of the United States of America. ,vol. 105, pp. 19714- 19719 ,(2008) , 10.1073/PNAS.0805468105
A. Gutin, A. Sali, V. Abkevich, M. Karplus, E. I. Shakhnovich, Temperature dependence of the folding rate in a simple protein model: Search for a “glass” transition Journal of Chemical Physics. ,vol. 108, pp. 6466- 6483 ,(1998) , 10.1063/1.476053
Rose Du, Vijay S. Pande, Alexander Yu. Grosberg, Toyoichi Tanaka, Eugene S. Shakhnovich, On the transition coordinate for protein folding Journal of Chemical Physics. ,vol. 108, pp. 334- 350 ,(1998) , 10.1063/1.475393
Marek Cieplak, Trinh Xuan Hoang, Mai Suan Li, Scaling of Folding Properties in Simple Models of Proteins Physical Review Letters. ,vol. 83, pp. 1684- 1687 ,(1999) , 10.1103/PHYSREVLETT.83.1684
V.I. Abkevich, A.M. Gutin, E.I. Shakhnovich, Impact of local and non-local interactions on thermodynamics and kinetics of protein folding. Journal of Molecular Biology. ,vol. 252, pp. 460- 471 ,(1995) , 10.1006/JMBI.1995.0511
Rui D M Travasso, Patrícia F N Faísca, Margarida M Telo da Gama, Nucleation phenomena in protein folding: the modulating role of protein sequence Journal of Physics: Condensed Matter. ,vol. 19, pp. 285212- ,(2007) , 10.1088/0953-8984/19/28/285212
Marc L. Mansfield, Fit to be tied. Nature Structural & Molecular Biology. ,vol. 4, pp. 166- 167 ,(1997) , 10.1038/NSB0397-166
Hue Sun Chan, Ken A. Dill, Transition states and folding dynamics of proteins and heteropolymers Journal of Chemical Physics. ,vol. 100, pp. 9238- 9257 ,(1994) , 10.1063/1.466677