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Publications


Zhong, L., Walker, R.C., Brady, J.W. et al., "Computational Simulations of the Trichoderma reesei Cellobiohydrolase I Acting on Microcrystalline Cellulose Iβ: The Enzyme-Substrate Complex", Carb. Res., 2009, 344, 1984-1992. (Full Text PDF)

Seabra, G.M., Walker, R.C., Roitberg, A.E., "Are Current Semi-Empirical Methods Better than Force Fields? A Study from the Thermodynamics Perspective", J. Phys. Chem. A., 2009, 113, 11938-11948. (Full Text PDF)

Bergonzo, C., Campbell, A.J., Walker, R.C., Simmerling, C., "A Partial Nudged Elastic Band Implementation for Use with Large or Explicitly Solvated Large Systems", Int. J. Quant. Chem., 2009, 109, 15, 3781-3790. (Full Text PDF)

Crowley, M.F., Williamson, M.J., Walker, R.C., "CHAMBER: Comprehensive Support for CHARMM Force Fields Within the AMBER Software", Int. J. Quant. Chem., 2009, 109, 15, 3767-3772. (Full Text PDF)

Sherrill C.D., Sumpter B.G., Sinnokrot M.O., Marshall M.S., Hohenstein E.G., Walker R.C., Gould I.R., "Assessment of standard force field models against high-quality ab initio potential curves for prototypes of -, CH/, and SH/ interactions", J. Comp. Chem, 2009, 30, 2187-2193. (Full Text PDF)

Crowley, M. F.; Uberbacher, E. C.; Brooks, C. L., III; Walker, R. C.; Nimlos, M. R.; Himmel, M. E., "Developing improved MD codes for understanding processive cellulases", SCIDAC 2008: Scientific Discovery Through Advanced Computing, 2008, 125: 12049-12049. (Full Text PDF)

Sharikov, Y., Walker, R.C., Greenberg, J., Kouznetsova, V., Nigam, S., Miller, M.A.,  Masliah, E., Tsigelny, I.F., "MAPAS: a tool for prediction of membrane-contacting protein surfaces" Nature: Methods, 2008, 5(2), 119. (Full Text PDF, Supplemental Material PDF)

Case, D.A., Walker, R.C. et al. AMBER 10, 2008, University of California, San Francisco.

Walker, R.C., Crowley, M.F., Case, D.A., "The Implementation of a Fast and Accurate QM/MM Potential Method in AMBER." J. Comp. Chem. 2008, 29, 1019-1031. (Full Text PDF, Supplemental Material PDF)

Seabra, G.M., Torras-Costa, J., Walker, R.C., Roitberg, A.E. "Mixed QM/MM calculations in Biological Systems" John von Neumann Institut fur Computing, NIC Series, 2007, 34, 37-43 (Full Text PDF)

Zhong, L. Walker, R.C, Brady, J.W. et al. "Interactions of the Complete Cellobiohydrolase I from Trichodera reesei with Microcrystalline Cellulose IB.", Cellulose. 2008, 15, 261-273 (Full Text PDF)

Raman, S., Bin, Q., Baker, D., Walker, R.C. "Advances in Protein Structure Prediction on Massively Parallel Systems: Recent Successes with the Rosetta Software and Future Directions.", IBM Journal of R and D. 2008, 5, 7-17 (Full Text PDF)

Seabra, G.M, Walker, R.C., Elstner, M., Case, D.A., Roitberg, A.E., "Implementation of the SCC-DFTB Method for Hybrid QM/MM Simulations within the Amber Molecular Dynamics Package.", J. Phys. Chem A. 2007, 111, 5655-5664. (Full Text PDF)

Nimlos, M.R., Walker, R.C. Himmel, M. et al., "Molecular Modeling Suggests Induced Fit of Family I Carbohydrate Binding Modules with a Broken Chain Cellulose Surface.", Prot. Eng., Des and Sel. 2007, 20(4), 179-187. (Full Text PDF)

Walker, R.C., Gould, I.R., Klug, D.R. "A Comparison of the Performance of Ab Initio, DFT and Semi- Empirical Methods for Probing Equilibrium Fluctuations." J. Comp. Chem., 2007, 28(2), 478-490 (Full Text PDF)

Case, D.A., Walker, R.C. et al. AMBER 9, (2006), University of California, San Francisco.

Walker, R.C., Cho, B.M., Amer, H., Mercer, I.P., Gould, I.R., Klug, D.R., "The effect of adiabaticity on electron dynamics in Zinc Myoglobin." J. Phys. Chem. B., 2005, 109(12), 5954-5961. (Full Text PDF)

Case, D.A., Crowley, M.F., Walker, R.C. et al. "Computer Modeling of Proteins and Nucleic Acids", Sci. Rep. of The Scripps Research Institute. 2005, 189-190.

Case, D.A., Crowley, M.F., Walker, R.C. et al. "Computer Modeling of Proteins and Nucleic Acids", Sci. Rep. of The Scripps Research Institute. 2004, 182-184.

Walker, R.C., Klug, D.R. et al. "Large and fast relaxations inside a protein: Calculation and measurement of reorganisation energies in alcohol dehydrogenase.", J. Phys. Chem. B., 2002, 106(46). 11658-11665 (Full Text PDF)

 

Collected Works

 


Tsigelny, I.F., Sharikov, Y., Walker, R.C., Greenberg, J., Kouznetsova, V., Miller, M.A., Masliah, E., "Membrane-active peptides: methods and results on structure and function", Ed. M. Castanha, International University Line, La Jolla, CA, 2009.

Chapter entitled "Computer Simulations of Cellulase", in "Biomass Recalcitrance", Ed. Dr. M. Himmel, NREL, Blackwell Publishing, Oxford, UK, 2008, ISBN: 978-1405-16360-6. (Purchase Here)

Seabra, G.M., Walker, R.C., Roitberg, A.E., "Quantifying Solvation Effects on Peptide Conformations: A QM/MM Replica Exchange Study.", in "Solvation Effects on Molecules and Biomolecules: Computational Methods and Applications (Challenges and Advances in Computational Chemistry and Physics) ", Ed. Prof. Sylvio Canuto, Springer, 2008, ISBN: 978-1-4020-8269-6. (Purchase Here)

 

 

 


the Walker Molecular Dynamics lab