Gerhard Hummer, Ph.D. : NIDDK

Gerhard Hummer, Ph.D.


Chief, Theoretical Biophysics Section

LCP
THEORETICAL BIOPHYSICS SECTION
NIDDK, National Institutes of Health
Building 5, Room 132
5 Memorial Dr.
Bethesda, MD 20892-0520
Tel: 301-402-6290
Fax: 301-496-0825
Email: hummer@helix.nih.gov

Education / Previous Training and Experience:
Ph.D., University of Vienna, Austria, 1992


Research Statement:

The main objective is to understand the stability, dynamics, and function of biomolecules and their complexes using computational and theoretical methods, in close collaboration with experimental groups. Major emphasis is placed on the role of water and ions in biomolecular systems, and in particular on hydrophobic and electrostatic effects. Focus areas include theory of single-molecule experiments; channel function; peptide and protein folding; complex formation and ligand binding; proton pumping and bioenergetics; reaction-rate calculations; and the development of new methods for biomolecular simulation and electrostatics.



Selected Publications:

1. Best RB, Buchete NV, Hummer G Are current molecular dynamics force fields too helical? Biophys J(95): L07-9, 2008. [Full Text/Abstract]

2. Tikhonova IG, Best RB, Engel S, Gershengorn MC, Hummer G, Costanzi S Atomistic insights into rhodopsin activation from a dynamic model. J Am Chem Soc(130): 10141-9, 2008. [Full Text/Abstract]

3. Turjanski AG, Gutkind JS, Best RB, Hummer G Binding-induced folding of a natively unstructured transcription factor. PLoS Comput Biol(4): e1000060, 2008. [Full Text/Abstract]

4. Buchete NV, Hummer G Coarse Master Equations for Peptide Folding Dynamics. J Phys Chem B: 112(19):6057-69, 2008. [Full Text/Abstract]

5. Kim YC, Hummer G Coarse-grained models for simulations of multiprotein complexes: application to ubiquitin binding. J Mol Biol(375): 1416-33, 2008. [Full Text/Abstract]

6. Canagarajah BJ, Hummer G, Prinz WA, Hurley JH Dynamics of Cholesterol Exchange in the Oxysterol Binding Protein Family. J Mol Biol: 378(3):737-48, 2008. [Full Text/Abstract]

7. Kaila VR, Verkhovsky MI, Hummer G, Wikstrom M Glutamic acid 242 is a valve in the proton pump of cytochrome c oxidase. Proc Natl Acad Sci U S A(105): 6255-9, 2008. [Full Text/Abstract]

8. Mittal J, Truskett TM, Errington JR, Hummer G Layering and position-dependent diffusive dynamics of confined fluids. Phys Rev Lett(100): 145901, 2008. [Full Text/Abstract]

9. Kofinger J, Hummer G, Dellago C Macroscopically ordered water in nanopores. Proc Natl Acad Sci U S A(105): 13218-22, 2008. [Full Text/Abstract]

10. Buchete NV, Hummer G Peptide folding kinetics from replica exchange molecular dynamics Physical Review E(77): 030902, 2008. [Full Text/Abstract]

11. Kaila VR, Verkhovsky M, Hummer G, Wikstrom M Prevention of leak in the proton pump of cytochrome c oxidase. Biochim Biophys Acta(1777): 890-2, 2008. [Full Text/Abstract]

12. Best RB, Hummer G Protein folding kinetics under force from molecular simulation. J Am Chem Soc(130): 3706-7, 2008. [Full Text/Abstract]

13. Best RB, Paci E, Hummer G, Dudko OK Pulling Direction as a Reaction Coordinate for the Mechanical Unfolding of Single Molecules. J Phys Chem B: 112(19):5968-76, 2008. [Full Text/Abstract]

14. Kim YC, Tang C, Clore GM, Hummer G Replica exchange simulations of transient encounter complexes in protein-protein association. Proc Natl Acad Sci U S A(105): 12855-60, 2008. [Full Text/Abstract]

15. Dudko OK, Hummer G, Szabo A Theory, analysis, and interpretation of single-molecule force spectroscopy experiments. Proc Natl Acad Sci U S A(105): 15755-60, 2008. [Full Text/Abstract]

16. Rasaiah JC, Garde S, Hummer G Water in Nonpolar Confinement: From Nanotubes to Proteins and Beyond. Annu Rev Phys Chem: 59:713-40, 2008. [Full Text/Abstract]

17. Tuukkanen A, Kaila VR, Laakkonen L, Hummer G, Wikstrom M Dynamics of the glutamic acid 242 side chain in cytochrome c oxidase. Biochim Biophys Acta, 2007. [Full Text/Abstract]

18. Dudko OK, Mathe J, Szabo A, Meller A, Hummer G Extracting Kinetics from Single-Molecule Force Spectroscopy: Nanopore Unzipping of DNA Hairpins. Biophys J(92): 4188-4195, 2007. [Full Text/Abstract]

19. Kim YC, Wikstrom M, Hummer G Kinetic models of redox-coupled proton pumping. Proc Natl Acad Sci U S A (104): 2169-74, 2007. [Full Text/Abstract]

20. Yin H, Hummer G, Rasaiah JC Metastable water clusters in the nonpolar cavities of the thermostable protein tetrabrachion. J Am Chem Soc(129): 7369-77, 2007. [Full Text/Abstract]

21. Zheng W, Brooks BR, Hummer G Protein conformational transitions explored by mixed elastic network models. Proteins(69): 43-57, 2007. [Full Text/Abstract]

22. Chen YG, Hummer G Slow Conformational Dynamics and Unfolding of the Calmodulin C-Terminal Domain. J Am Chem Soc(129): 2414 -2415, 2007. [Full Text/Abstract]

23. Collins MD, Quillin ML, Hummer G, Matthews BW, Gruner SM Structural Rigidity of a Large Cavity-containing Protein Revealed by High-pressure Crystallography J Mol Biol(367): 752-763, 2007. [Full Text/Abstract]

24. Buchete NV, Hummer G Structure and Dynamics of Parallel beta-Sheets, Hydrophobic Core, and Loops in Alzheimer's A-beta Fibrils. Biophys J(92): 3032-9, 2007. [Full Text/Abstract]

25. Milac AL, Buchete NV, Fritz TA, Hummer G, Tabak LA Substrate-induced Conformational Changes and Dynamics of UDP-N-Acetylgalactosamine:Polypeptide N-Acetylgalactosaminyltransferase-2. J Mol Biol, 2007. [Full Text/Abstract]

26. Prag G, Watson H, Kim YC, Beach BM, Ghirlando R, Hummer G, Bonifacino JS, Hurley JH The Vps27/Hse1 Complex Is a GAT Domain-Based Scaffold for Ubiquitin-Dependent Sorting. Dev Cell(12): 973-86, 2007. [Full Text/Abstract]

27. Hummer G Water pulls the strings in hydrophobic polymer collapse. Proc Natl Acad Sci U S A(104): 14883-4, 2007. [Full Text/Abstract]

28. Hummer G Water, proton, and ion transport: from nanotubes to proteins Molec. Phys.(105): 201-207, 2007. [Full Text/Abstract]

29. Best RB, Hummer G Diffusive model of protein folding dynamics with kramers turnover in rate. Phys Rev Lett (96): 228104, 2006. [Full Text/Abstract]

30. Hassan SA, Hummer G, Lee YS Effects of electric fields on proton transport through water chains. J Chem Phys (124): 204510, 2006. [Full Text/Abstract]

31. Berezhkovskii AM, Hummer G, Bezrukov SM Identity of Distributions of Direct Uphill and Downhill Translocation Times for Particles Traversing Membrane Channels Phys Rev Lett(97): 020601, 2006. [Full Text/Abstract]

32. Dudko OK, Hummer G, Szabo A Intrinsic rates and activation free energies from single-molecule pulling experiments. Phys Rev Lett (96): 108101, 2006. [Full Text/Abstract]

33. Dellago C, Hummer G Kinetics and mechanism of proton transport across membrane nanopores. Phys Rev Lett (97): 245901, 2006. [Full Text/Abstract]

34. Sriraman S, Kevrekidis IG, Hummer G Coarse master equation from Bayesian analysis of replica molecular dynamics simulations J. Phys. Chem. B(109): 6479-6484, 2005. [Full Text/Abstract]

35. Sriraman S, Kevrekidis IG, Hummer G Coarse Nonlinear Dynamics and Metastability of Filling-Emptying Transitions: Water in Carbon Nanotubes Phys. Rev. Lett.(95): 130603, 2005. [Full Text/Abstract]

36. Best RB, Hummer G Comment on "Force-clamp spectroscopy monitors the folding trajectory of a single protein" Science(308): 498, 2005. [Full Text/Abstract]

37. Collins MD, Hummer G, Quillin ML, Matthews BW, Gruner SM Cooperative water filling of a nonpolar protein cavity observed by high-pressure crystallography and simulation. Proc Natl Acad Sci U S A (102): 16668-16671, 2005. [Full Text/Abstract]

38. Gustchina E, Hummer G, Bewley CA, Clore GM Differential inhibition of HIV-1 and SIV envelope-mediated cell fusion by C34 peptides derived from the C-terminal heptad repeat of gp41 from diverse strains of HIV-1, HIV-2, and SIV. J Med Chem (48): 3036-44, 2005. [Full Text/Abstract]

39. Andreev S, Reichman D, Hummer G Effect of flexibility on hydrophobic behavior of nanotube water channels. J Chem Phys (123): 194502, 2005. [Full Text/Abstract]

40. Hummer G, Szabo A Free energy surfaces from single-molecule force spectroscopy. Acc Chem Res (38): 504-13, 2005. [Full Text/Abstract]

41. Peter C, Hummer G Ion Transport through Membrane-Spanning Nanopores Studied by Molecular Dynamics Simulations and Continuum Electrostatics Calculations. Biophys J (89): 2222-34, 2005. [Full Text/Abstract]

42. Buchete NV, Tycko R, Hummer G Molecular dynamics simulations of Alzheimer's beta-amyloid protofilaments. J Mol Biol(353): 804-21, 2005. [Full Text/Abstract]

43. Hummer G Position-dependent diffusion coefficients and free energies from Bayesian analysis of equilibrium and replica molecular dynamics simulations New Journal of Physics(7): 34, 2005. [Full Text/Abstract]

44. Best RB, Hummer G Reaction coordinates and rates from transition paths. Proc Natl Acad Sci U S A(102): 6732-6737, 2005. [Full Text/Abstract]

45. Best RB, Chen YG, Hummer G Slow protein conformational dynamics from multiple experimental structures: the helix/sheet transition of arc repressor. Structure (Camb) (13): 1755-63, 2005. [Full Text/Abstract]

46. Yeh IC, Hummer G Diffusion and electrophoretic mobility of single-stranded RNA from molecular dynamics simulations. Biophys J (86): 681-9, 2004. [Full Text/Abstract]

47. Vaitheeswaran S, Rasaiah JC, Hummer G Electric field and temperature effects on water in the narrow nonpolar pores of carbon nanotubes. J Chem Phys (121): 7955-65, 2004. [Full Text/Abstract]

48. Kevrekidis IG, Gear CW, Hummer G Equation-free: The computer-aided analysis of complex multiscale systems AIChE J.(50): 1346-55, 2004.

49. Hummer G From transition paths to transition states and rate coefficients. J Chem Phys (120): 516-23, 2004. [Full Text/Abstract]

50. Kalra A, Garde S, Hummer G Methane partitioning and transport in hydrated carbon nanotubes J. Phys. Chem. B(108): 544-9, 2004.



Page last updated: January 08, 2009

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