Webb Group

Research People Links Contact Publications


The University of Texas at Austin

34.  Walker, D. M.; Wang, R.; and Webb, L. J.  "Conserved Electrostatic Fields at the Ras-Effector Interface Measured Through Vibrational Stark Effect Spectroscopy Explain the Difference in Tilt Angle in the Ras Binding Domain of Raf and RalGDS."  Phys. Chem. Chem. Phys.  2014, in press.

33.  Lim, M.; Wu, J.; Yao, J.; Gallardo, I. F.; Dugger, J. W.; Webb, L. J.; Huang, J.; Salmi, M. L.; Clark, G.; Roux, S. J.  "Apyrase Suppression Raises Extracellular ATP Levels and Induces Gene Expression and Cell Wall Changes Characteristic of Stress Responses."  Plant Phys. 2014, 164, 2054-2067.
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32.  Ritchie, A. R.; and Webb, L. J.  "Inclusion of Explicit Solvent Near a Vibrational Stark Probe Shows No Improvement Over Purely Implicit Solvent in the Calculation of Protein Electrostatic Field Changes Using APBS."  J. Phys. Chem. B 2014, ASAP Article, DOI: 10.1021/jp4092656. 
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31.  Ritchie, A. W. and Webb, L. J.  "Optimizing Electrostatic Field Calculations with the Adaptive Poisson-Boltzmann Solver to Predict Electric Fields at Protein-Protein Interfaces I: Sampling and Focusing."  J. Phys. Chem. B 2013, in press, DOI: 10.1021/jp404582w. pdf

30.  Raigoza, A. F.; Dugger, J. W.; and Webb, L. J.  "Review: Recent Advances and Current Challenges in Scanning Probe Microscopy of Biomolecular Surfaces and Interfaces."  ACS Appl. Mater. Interface. 2013, 5, 9249-9261.  pdf
 
29.  Gupta, S. C.; Sung, B.; Prasad, S.; Webb, L. J.; and Aggarwal, B. B.  "Exploring the Anti-Cancer Potential of Non-Cancer Drugs: Teaching New Tricks to Old Dogs."  Trends Pharmacol. Sci. 2013, 34, 508-517. 
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28.  Walker, D. M.; Hayes, E. C.; and Webb, L. J.  "Vibrational Stark Effect Spectroscopy Reveals Complementary Electrostatic Fields Created by Protein-Protein Binding at the Interface of Ras and Ral."  Phys. Chem. Chem. Phys. 2013, 15, 12241-12252. pdf
 
27.  Raigoza, A. F. and Webb, L. J.  "Molecularly Resolved Images of Peptide-Functionalized Gold Surfaces by Scanning Tunneling Microscopy."  J. Am. Chem. Soc. 2012, 134, 19354-19357.  pdf

26.  Schroder, K.; Celio, H.; Webb, L. J.;* Stevenson, K. S.*  "Examining Solid Electrolyte Interphase Formation on Crystalline Silicon Electrodes: Influence of Electrochemical Preparation and Ambient Exposure Conditions.  J. Phys. Chem. C  2012, 116, 19737-19747
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*Co-corresponding authors.

25.  Ragain, C. M.; Newberry, R. W.; Ritchie, A. W.; Webb, L. J.  "The Role of Electrostatics in Differential Binding of RalGDS to Rap Mutations E30D and K31E Investigated by Vibrational Spectroscopy of Thiocyanate Probes."  J. Phys. Chem. B 2012,
116, 9326-9336pdf

24.  Stafford, A. J.; Walker, D.; Webb, L. J.  Electrostatic Effects of Mutations to Ras Glutamine 61 Measured Using Vibrational Spectroscopy of a Thiocyanate Probe."  Biochemistry 2012, 51, 2757-2767.
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23.  Gallardo, I. F. and Webb, L. J.  "Demonstration of alpha-Helical Structure of Peptides Tethered to Gold Surfaces Using Surface Infrared and Circular Dichroic Spectroscopies."  Langmuir 2012, 28, 3510-3515.  pdf

22.  Gupta, S. C.; Prasad, S.; Kim, J. H.; Patchva, S.  Webb, L. J.; Priyadarsini, I. K.; Aggarwal, B. B.  "Multitargeting by Curcumin as Revealed by Molecular Interaction Studies."  Nat. Prod. Rep. 2011, 28, 1937-1955.  pdf

21.  Hu, W. and Webb, L. J.  "Direct Measurement of the Membrane Dipole Field in Bicelles Using Vibrational Stark Effect Spectroscopy."  J. Phys. Chem. Lett 2011, 2, 1925-1930.  pdf

20. Ensign, D.L. and Webb, L. J.  "Factors Determining Electrostatic Fields at the Ras/Effector Interface."  Proteins 2011, 79, 3511-3524.  pdf

19. Gallardo, I. F. and Webb, L. J.  "Tethering Hydrophobic Peptides to Functionalized Self-Assembled Monolayers on Gold Through Two Chemical Linkers Using the Huisgen Cycloaddition."  Langmuir 2010,  26, 18959-18966.  pdf

18. Stafford, A. J.; Ensign, D. L.; and Webb, L. J.  "Vibrational Stark Effect Spectroscopy at the Interface of Ras and Rap1A Bound to the Ras Binding Domain of RalGDS Reveals an Electrostatic Mechanism for Protein-Protein Interaction."  J. Phys. Chem. B 2010, 114, 15331-15344.  pdf

Stanford University


17. Webb, L. J.; Boxer, S. G.  "Electrostatic Fields Near the Active Site of Human Aldose Reductase: 1. New Inhibitors and Vibrational Stark Effect Measurements."  Biochemistry 2008, 47, 1588-1598.  pdf

16. Fafarman, A. T.; Webb, L. J.; Chuang, J. I.; Boxer, S. G.  "Site-Specific Conversion of Cysteine Thiols into Thiocyanate Creates an IR Probe for Electric Fields in Proteins."  J. Am. Chem. Soc. 2006, 128, 13356-13357.  pdf

California Institute of Technology

15. Traub, M. C.; Biteen, J. S.; Michalak, D. J.; Webb, L. J.; Brunschwig, B. S.; Lewis, N. S.  "Phosphine Functionalization of GaAs(111)A Surfaces."  J. Phys. Chem. C 2008, 112, 18467-18473.  pdf

14. Jaeckel, B.; Hunger, R.; Webb, L. J.; Jaegermann, W.; Lewis, N. S.  "High-Resolution Synchrotron Photoemission Studies of the Electronic Structure and Thermal Stability of CH3- and C2H5-Functionalized Si(111) Surfaces." J. Phys. Chem. C 2007, 111, 18204-18213.  pdf

13. Hunger, R.; Fritsche, R.; Jaechel, B.; Webb, L. J.; Jaegermann, W.; Lewis, N. S.  "High-Resolution Photoemission Studies of the Interfacial Reactivity and Interfacial Energetics of Au and Cu Schottky Barriers on Methyl-Terminated Si(111) Surfaces."  Surf. Sci. 2007, 601, 2896-2907.  pdf

12. Nemanick, E. J.; Hurley, P. T.; Webb. L. J.; Knapp, D. W.; Michalak, D. J.; Brunschwig, B. S.; Lewis, N. S.  "Chemical and Electrical Passivation of Single-Crystal Silicon(100) Surfaces through a Two-Step Chlorination/Alkylation Process."  J. Phys. Chem. B 2006, 110, 14770-14778.  pdf

11. Traub, M. C.; Biteen, J. S.; Michalak, D. J.; Webb, L. J.; Brunschwig, B. S.; Lewis, N. S.  "High-Resolution X-ray Photoelectron Spectroscopy of Chlorine-Terminated GaAs(111)A Surfaces."  J. Phys. Chem. B 2006, 110, 15641-15644.  pdf

10. Yu, H.; Webb, L. J.; Solares, S. D.; Cao, P.; Goddard, W. A.; Heath, J. R.; Lewis, N. S.  "Scanning Tunneling Microscopy of Ethylated Si(111) Surfaces Prepared by a Chlorination / Alkylation Process."  J. Phys. Chem. B 2006, 110, 23898-23903.  pdf

9. Yu, H.; Webb, L. J.; Heath, J. R.; Lewis, N. S.  "Scanning Tunneling Spectroscopy of Methyl- and Ethyl-Terminated Si(111) Surfaces."  Appl. Phys. Lett. 2006, 88, 252111-1-252111-3.  pdf

8. Webb, L. J.; Rivillon, S.; Michalak, D. J.; Chabal, Y. J.; Lewis, N. S.  "Transmission Infrared Spectroscopy of Methyl- and Ethyl-Terminated Silion(111) Surfaces."  J. Phys. Chem. B 2006, 110, 7349-7356.  pdf

7. Webb, L. J.; Michalak, D. J.; Biteen, J. S.; Brunschwig, B. S.; Chan, A. S. Y.; Knapp, D. W.; Meyer, J. M.; Nemanick, E. J.; Traub, M. C.; Lewis, N. S.  "High-Resolution Soft X-ray Photoelectron Spectroscopic Studies and Scanning Auger Microscopy Studies of the Air Oxidation of Alkylated Silicon(111) Surfaces."  J. Phys. Chem. B 2006, 110, 23450-23459.  pdf
 
6. Solares, S. D.; Yu, H.; Webb, L. J.; Lewis, N. S.; Heath, J. R.; Goddard, W. G.  "Chlorination - Methylation of the Hydrogen-Terminated Silicon(111) Surface Can Induce a Stacking Fault in the Presence of Etch Pits."  J. Am. Chem. Soc. 2006, 128, 3850-3851.  pdf

5. Hunger, R.; Fritsche, R.; Jaechel, B.; Jaegermann, W.; Webb, L. J.; Lewis, N. S.  "Chemical and Electronic Characterizaiton of Methyl-Terminated Si(111) Surfaces by High-Resolution Synchrotron Photoelectron Spectroscopy."  Phys. Rev. B 2005, 72, 045317-7.  pdf

4. Rivillon, S.; Chabal, Y. J.; Webb, L. J.; Michalak, D. J.; Lewis, N. S.; Halls, M. D.; Raghavachari, K.  "Infrared Spectroscopy of Chlorine-Terminated Si(111) Surfaces."  J. Vac. Sci. Technol. 2005, 23, 1100-1106.  pdf

3. Webb, L. J.; Nemanick, E. J.; Biteen, J. S.; Knapp, D. W.; Michalak, D. J.; Traub, M. C.; Chan, A. S. Y.; Brunschwig, B. S.; Lewis, N. S.  "High-Resolution X-ray Photoelectron Spectroscopic Studies of Alkylated Crystalline Silicon(111) Surfaces."  J. Phys. Chem. B 2005, 109, 3930-3937.  pdf

2. Yu, H.; Webb, L. J.; Reis, R.; Solares, S. D.; Goddard, W. A.; Heath, J. R.; Lewis, N. S.  "Low Temperature STM Images of Methyl-Terminated Si(111) Surfaces."  J. Phys. Chem. B 2005, 109, 671-674.  pdf

1. Webb, L. J.; Lewis, N. S.  "Comparison of the Electrical Properties and Chemical Stability of Crystalline Silicon(111) Surfaces Alkylated Using Grignard Reagents or Olefins with Lewis Acid Catalysts."  J. Phys. Chem. B 2003, 107, 5404-5412.  pdf

Webb, L. J.  Chemical Characterization and Charge Carrier Dynamics of Crystalline Silicon(111) Surfaces Modified with Surface-Bound Organic Functional Groups.  California Institute of Technology, 2005.  pdf



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