Open AccessThis article is
- freely available
The Effect of C-Terminal Helix on the Stability of FF Domain Studied by Molecular Dynamics Simulation
Shandong Provincial Key Laboratory of Functional Macromolecular Biophysics, Dezhou University, 566 University Rd. West, Dezhou 253023, China
Department of Physics, Dezhou University, 566 University Rd. West, Dezhou 253023, China
* Author to whom correspondence should be addressed.
Received: 16 December 2011; in revised form: 20 January 2012 / Accepted: 29 January 2012 / Published: 7 February 2012
Abstract: To investigate the effect of C-terminal helix on the stability of the FF domain, we studied the native domain FF3-71 from human HYPA/FBP11 and the truncated version FF3-60 with C-terminal helix being deleted by molecular dynamics simulations with GROMACS package and GROMOS 43A1 force field. The results indicated that the structures of truncated version FF3-60 were evident different from those of native partner FF3-71. Compared with FF3-71, the FF3-60 lost some native contacts and exhibited some similar structural characters to those of intermediate state. The C-terminal helix played a major role in stabilizing the FF3-71 domain. To a certain degree, the FF domain had a tendency to form an intermediate state without the C-terminal helix. In our knowledge, this was the first study to examine the role of C-terminal helix of FF domain in detail by molecular dynamics simulations, which was useful to understand the three-state folding mechanism of the small FF domain.
Keywords: FF domain; molecular dynamics simulation; C-terminal helix; structural stability; intermediate state
Article StatisticsClick here to load and display the download statistics.
Notes: Multiple requests from the same IP address are counted as one view.
Cite This Article
MDPI and ACS Style
Zhao, L.; Cao, Z.; Wang, J. The Effect of C-Terminal Helix on the Stability of FF Domain Studied by Molecular Dynamics Simulation. Int. J. Mol. Sci. 2012, 13, 1720-1732.
Zhao L, Cao Z, Wang J. The Effect of C-Terminal Helix on the Stability of FF Domain Studied by Molecular Dynamics Simulation. International Journal of Molecular Sciences. 2012; 13(2):1720-1732.
Zhao, Liling; Cao, Zanxia; Wang, Jihua. 2012. "The Effect of C-Terminal Helix on the Stability of FF Domain Studied by Molecular Dynamics Simulation." Int. J. Mol. Sci. 13, no. 2: 1720-1732.