Summary
We have developed a computer program with the necessary mathematical formalism for the geometric characterization of distorted conformations of alpha-helices proteins, such as those that can potentially be sampled during typical molecular dynamics simulations. This formalism has been incorporated into TRAJELIX, a new module within the SIMULAID framework (http://inka.mssm.edu/~mezei/simulaid/) that is capable of monitoring distortions of alpha-helices in terms of their displacement, global and local tilting, rotation around their axes, compression/extension, winding/unwinding, and bending. Accurate evaluation of these global and local structural properties of the helix can help study possible intramolecular and intermolecular changes in the helix packing of alpha-helical membrane proteins, as shown here in an application to the interacting helical domains of rhodopsin dimers. Quantification of the dynamic structural behavior of alpha-helical membrane proteins is critical for our understanding of signal transduction, and may enable structure-based design of more specific and efficient drugs.
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References
Sansom M.S., Weinstein H., 2000, Trends. Pharmacol. Sci. 21: 445
Barlow D.J., Thornton J.M., 1988, J. Mol. Biol. 201: 601
Kumar S., Bansal M., 1998, Biophys. J. 75: 1935
Christopher J.A., Swanson R., Baldwin T.O., 1996, Computer Chemistry 20: 339
Mezei, M., Simulaid: simulation setup utilities http://inka. mssm/edu/∼ ∼mezei/simulaid
Bansal M., Kumar S., Velavan R., 2000, J. Biomol. Struct. Dyn. 17: 811
van der Spoel, D., van Druner, R. and Berendsen, H.J.C., GROningen MAchine for Chemical Simulation. Department of Biophysical Chemistry. BIOSON Research Institute, Groningen, The Netherlands
Liang Y., Fotiadis D., Filipek S., Saperstein D.A., Palczewski K., Engel A., 2003, J Biol. Chem. 278: 21655
Lazaridis T., 2003, Proteins 52: 176
Kabsch W., Sander C., 1983, Biopolymers 22: 2577
Rose G.D., Seltzer J.P., 1977, J. Mol. Biol. 113: 153
Kahn P.C., 1989, Computers and Chemistry 13: 191
Wani, J.K., Probability and Statistical Inference; Appelton-Century-Crofts 1971
Westbrook J.D., Fitzgerald P.M., 2003, Methods Biochem. Anal. 44: 161
Brooks B.R., Bruccoleri R.E., Olafson B.D., States D.J., Swaminathan S., Karplus M., 1983, J. Comp. Chem. 4: 187
Weiner P.K., Kollman P.A., 1981, J. Comp. Chem. 2: 287
Mohamadi F., Richards N.G.J., Guida W.C., Liskamp R., Lipton M., Caufield C., Chang G., Hendrickson T., Still W.C., 1990, J. Comp. Chem. 11: 440
Accelrys, InsightII; http://www.accelrys.com/insight/index. html
Mezei, M., MMC: Monte Carlo program for simulation of molecular assemblies; http://inka.mssm.edu/∼ ∼mezei/mmc
Kale L., Skeel R., Bhandarkar M., Brunner R., Gursoy A., Krawetz N., Phillips J., Shinozaki A., Varadarajan K., Schulten K., 1999, J. Comput. Phys. 151: 283
Ravishanker G., Swaminathan S., Beveridge D.L., Lavery R., Sklenar H., 1989, J. Biomol. Struct. Dyn. 6: 669
Bai M., 2004, Cell Signal 16: 175
Javitch J.A., 2004, Mol. Pharmacol. 66: 1077
Liebmann C., 2004, Curr. Pharm. Des. 10: 1937
Milligan G., 2004, Mol. Pharmacol. 66: 1
Park P.S., Filipek S., Wells J.W., Palczewski K., 2004, Biochemistry 43: 15643
Terrillon S., Bouvier M., 2004, EMBO Rep. 5: 30
Filizola M., Weinstein H., 2005, Curr. Opin. Drug. Disc Develop. 8: 577
Fotiadis D., Liang Y., Filipek S., Saperstein D.A., Engel A., Palczewski K., 2003, Nature 421: 127
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Mezei, M., Filizola, M. TRAJELIX: A Computational Tool for the Geometric Characterization of Protein Helices During Molecular Dynamics Simulations. J Comput Aided Mol Des 20, 97–107 (2006). https://doi.org/10.1007/s10822-006-9039-1
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DOI: https://doi.org/10.1007/s10822-006-9039-1