- Cho KJ, Park JH, Piggott AM, Salim AA, Gorfe A, Parton RG, Capon RJ, Lacey E, Hancock JF. (2012). Staurosporines disrupt phospha- tidylserine trafficking and mislocalize Ras proteins. J Biol Chem, 287, 43573-43584
- Janosi L, Li Z, Hancock JF and Gorfe AA. (2012) Organization, dynamics and segregation of Ras nanoclusters in membrane domains. Proc Natl Acad Sci. 109, 8097-8102.
- Li Z and Gorfe AA. (2012) What drives the clustering of membrane-bound Ras? Small GTPases. 3, 244-247.
- Li Z, Janosi L and Gorfe AA. (2012) Formation and domain-partitioning of H-ras peptide nanoclusters: Effects of peptide concentration and lipid composition. J Am Chem Soc. 134, 17278-1728.
- Prakash P, Sayyed-Ahmad A and Gorfe AA. (2012) The role of conserved waters in conformational transitions of Q61H K-ras. PLoS Comput Biol. 8, e1002394.
- Prakash P, Sayyed-Ahmad A, Zhou Y, Volk DE, Gorenstein DG, Dial EJ, Lichtenberger LM, Gorfe AA. (2012) Aggregation behanvior of ibuprofen, cholic acid and didecylphosphatidylcholine micelles. Biochim Biophysica Acta 1818: 3040-3047.
- Grant BJ, Lukman S, Hocker H, Sayyah J, Heller Brown J, McCammon JA, Gorfe AA. (2011) Novel Allosteric Sites on Ras for Lead Generation. PLoS ONE, 6, e25711.
- Janosi L and Gorfe AA. (2010) Simulating POPC and POPC/POPG Bilayers: Conserved packing and altered surface reactivity. J Chem Theory Comput. 16, 3267-3273.
- Janosi L and Gorfe AA. (2010) Importance of the sphingosine base double bond geometry for the structural and thermodynamic properties of sphingomyelin bilayers. Biophys J. 99, 2957–2966. (FEATURED ARTICLE)
- Janosi L and Gorfe AA. (2010) Segregation of negatively charged phospholipids by the polycationic and farnesylated membrane anchor of Kras. Biophys J 99, 3666-3674.
- Zhou, Lu B-Z and Gorfe AA. (2010) Continuum Electromechanical Modeling of Protein Membrane Interactions. Phys Rev E. 82, 41923-41928.
- Sayyed-Ahmad A, Lichtenberger LM and Gorfe AA. (2010) Structure and Dynamics of Cholic Acid and Dodecylphosphocholine−Cholic Acid Aggregates. Langmuir 26, 13407-13414.
- Abankwa D, Gorfe AA, Inder K and Hancock JF. (2010) Ras membrane orientation and nanodomain localization generate isoform diversity. Proc Nat'l Ac Sc USA, 107:1130-1135.
- Gorfe AA. (2010) Mechanisms of allostery and membrane attachment in Ras GTPases: implications for anti-cancer drug discovery. Curr Med Chem, 17:1-9.
- Grant B, Gorfe AA, and McCammon JA. (2010) Large conformational changes in proteins: signaling and other functions. Curr Opin Struct Biol, 20:142-147.
Alemayehu Gorfe, Ph.D.
UTHSC-Medical School, (713) 500-7538
Gorfe Research Group website
Ph.D.: University of Zurich, Switzerland, 2003
- University of Zurich, Switzerland, 2005
- Univeristy of California, San Diego, 2008
We use computer simulations to study the organization of cell signaling components, interfacial interactions and allostery to aid in the development of treatments for unsolved health challenges. Our special focus is on the Ras family of lipid-modified enzymes that regulate a variety of cell signaling pathway and whose malfunction leads to many forms of cancer. There is an urgent need for an ongoing effort to find drugs that abrogate signaling through defective Ras. Aiming at contributing to this effort, we study Ras at the atomic, molecular and supramolecular levels of detail using multi-scale simulations and collaborative cell-biological and biophysical experiments. We are particularly interested in understanding how dynamics and lateral distribution of Ras and related G-proteins on membrane surfaces may affect their ability to functionally interact with other proteins. Other interests of the group include modeling transient signaling complexes and interaction between specific drugs and phospholipids.
A tutorial in our laboratory would provide experience with modern techniques in biomolecular simulations for investigating the thermodynamic principles underlying the assembly and function of molecular complexes.