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Fried J. T. Zwartkruis

Researcher at Utrecht University

Publications -  76
Citations -  12455

Fried J. T. Zwartkruis is an academic researcher from Utrecht University. The author has contributed to research in topics: Rap1 & Guanine nucleotide exchange factor. The author has an hindex of 43, co-authored 73 publications receiving 11787 citations. Previous affiliations of Fried J. T. Zwartkruis include University of Michigan & Harvard University.

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Epac is a Rap1 guanine-nucleotide-exchange factor directly activated by cyclic AMP

TL;DR: The cloned gene encoding a guanine-nucleotide-exchange factor (GEF) for Rap1 is named Epac, which contains a cAMP-binding site and a domain that is homologous to domains of known GEFs for Ras and Rap1 that is regulated directly by cAMP.
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A genetic screen for mutations affecting embryogenesis in zebrafish

TL;DR: The results from the first application of such a large-scale genetic screening to vertebrate development of mutagenized zebrafish demonstrate that mutations affecting a variety of developmental processes can be efficiently recovered from zebra fish.
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Insulin Activation of Rheb, a Mediator of mTOR/S6K/4E-BP Signaling, Is Inhibited by TSC1 and 2

TL;DR: Evidence is provided that TSC1/2 is a GAP for the small GTPase Rheb and that insulin-mediated RheB activation is PI3K dependent and that Rhe b overexpression induces S6K1 phosphorylation and inhibits PKBosphorylation, as do loss-of-function mutations in TSC 1/2.
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Amino acids mediate mTOR/raptor signaling through activation of class 3 phosphatidylinositol 3OH-kinase

TL;DR: A major pathway by which amino acids control mTOR signaling is distinct from that of insulin and that, instead of signaling through components of the insulin/class 1PI3K pathway, amino acids mediate mTOR activation by signaling through class 3 PI3K, hVps34.