|Citation||Hu, H., Li, M., Labrador, J.P., McEwen, J., Lai, E.C., Goodman, C.S., Bashaw, G.J. (2005). Cross GTPase-activating protein (CrossGAP)/Vilse links the Roundabout receptor to Rac to regulate midline repulsion. Proc. Natl. Acad. Sci. U.S.A. 102(12): 4613--4618. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||The regulators of the Rho-family GTPases, GTPase-activating proteins (GAPs) and guanine exchange factors (GEFs), play important roles in axon guidance. By means of a functional genomic study of the Rho-family GEFs and GAPs in Drosophila, we have identified a Rho-family GAP, CrossGAP (CrGAP), which is involved in Roundabout (Robo) receptor-mediated repulsive axon guidance. CrGAP physically associates with the Robo receptor. Too much or too little CrGAP activity leads to defects in Robo-mediated repulsion at the midline choice point. The CrGAP gain-of-function phenotype mimics the loss-of-function phenotypes of both Robo and Rac. Dosage-sensitive genetic interactions among CrGAP, Robo, and Rac support a model in which CrGAP transduces signals downstream of Robo receptor to regulate Rac-dependent cytoskeletal changes.|
|Supplementary material||[title not yet available] [FBrf0191477]
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|All updates||Click here to see a list of all updates to this record from FB2010_08 and on.|
|Language of Publication||English|
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|Abbreviation||Proc. Natl. Acad. Sci. U.S.A.|
|Title||Proceedings of the National Academy of Sciences of the United States of America|
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