Real-time in vitro measurement of Intrinsic and Ras GAP-mediated GTP hydrolysis; Schwann cell preparation from single mouse embryos: Analyses of neurofibromin function in Schwann cells; Regulation of the nucleotide state of oncogenic Ras proteins by nucleoside diphosphate kinase; Measurements of TSC2 GAP activity toward Rheb; Characterization of AND-34 function and signalling; Studying the spatial and temporal regulation of Ras GTPase-activating proteins; Activation of Ras Proteins by Ras Guanine Nucleotide Releasing Protein Family Members; Ras and Rap1 Activation of PLC? lipase activity; Specificity and expression of RalGPS as RalGEFs; Biochemical and biological analyses of Rgr RalGEF oncogene; Analysis of Ras Activation in Living Cells with GFP-RBD; Genetic and pharmacologic analyses of the role of Icmt in Ras membrane association and function; Characterization of the activation of the Rap specific exchange factor epac by cyclic nucleotides; Biochemistry of the Rap-specific guanine nucleotide exchange factors PDZ-GEF1 and 2; Characterization of interactions between Ras family GTPases and their effectors; Genetic and pharmacologic dissection of Ras effector utilization in oncogenesis; Sequencing analysis of BRAF mutations in human cancers; KSR regulation of the Raf-MEK-ERK cascade; Ras-sensitive IMP modulation of the Raf/MEK/ERK cascade through KSR1; Raf Kinase Inhibitor Protein (RKIP) regulation of Raf and MAPK signalling; Harnessing RNAi for Analyses of Ras Signaling and Transformation; The Rac Activator Tiam1and Ras induced Oncogenesis; Phospholipase Ce CƒÕ guanine nucleotide exchange factor activity and activation of Rap1; Nore1 and RASSF1 regulation of cell proliferation and of the MST1/2 kinases; RASSF family proteins and Ras transformation; Ras and the Rain/RasBP1 effector; The RIN family of Ras effectors; RAP1 regulation of RIAM and cell adhesion; Regulation of cell-cell adhesion by Rap1; Effects of Ras signaling on gene expression analyzed
The Ras superfamily (>150 human members) encompasses Ras GTPases involved in cell proliferation, Rho GTPases involved in regulating the cytoskeleton, Rab GTPases involved in membrane targeting/fusion and a group of GTPases including Sar1, Arf, Arl and dynamin involved in vesicle budding/fission. These GTPases act as molecular switches and their activities are controlled by a large number of regulatory molecules that affect either GTP loading (guanine nucleotide exchange factors or GEFs) or GTP hydrolysis (GTPase activating proteins or GAPs). In their active state, they interact with a continually increasing, functionally complex array of downstream effectors.
Since the last Methods in Enzymology volume on this topic in 2000, the study of Ras Family GTPases has witnessed a plethora of new directions and trends. With regards to the founding member of the Ras superfamily, the study of Ras in oncogenesis has seen the development and application of more advanced model cell culture and animal systems. The discovery of mutationally activated B-Raf in human cancers has injected renewed interest in this classical effector pathway of Ras.
Includes a database for Ras family proteins and their effectors and regulators Complimentary to volume 406 coverage of the Rho family *Over 150 international contributors
Biochemists, biophysicists, cell biologists, molecular biologists, geneticists, developmental biologists
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- © Academic Press 2006
- 7th April 2006
- Academic Press
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The Scripps Research Institute, La Jolla, CA, USA
Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, USA
University College of London, U.K.