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Complexes of Ras.GTP with Raf-1 and mitogen-activated protein kinase kinase.
Science, 1993The guanosine triphosphate (GTP)-binding protein Ras functions in regulating growth and differentiation; however, little is known about the protein interactions that bring about its biological activity.
S. Moodie +3 more
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GDP/GTP Exchange Proteins for Small GTP-Binding Proteins
1993There is a superfamily of small GTP-binding proteins in which more than forty members are included (Bourne et al. 1991; Hall 1990; Takai et al. 1992). They exhibit GDP/GTP-binding and GTPase activities and have two interconvertible forms: GDP-bound inactive and GTP-bound active forms (Fig. 1).
A. Kikuchi +3 more
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Enzyme, 1979
The cytosolic form of phosphoenolpyruvate carboxykinase (GTP; EC 4.1.1.32) from rat liver was purified by a procedure involving affinity chromatography on agarose-hydrazide-GTP. Phosphoenolpyruvate carboxykinase is retained quantitatively by the affinity medium in the presence of manganese and can be specifically eluted by a pulse of GTP.
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The cytosolic form of phosphoenolpyruvate carboxykinase (GTP; EC 4.1.1.32) from rat liver was purified by a procedure involving affinity chromatography on agarose-hydrazide-GTP. Phosphoenolpyruvate carboxykinase is retained quantitatively by the affinity medium in the presence of manganese and can be specifically eluted by a pulse of GTP.
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Evolution of the Rab family of small GTP-binding proteins.
Journal of Molecular Biology, 2001Rab proteins are small GTP-binding proteins that form the largest family within the Ras superfamily. Rab proteins regulate vesicular trafficking pathways, behaving as membrane-associated molecular switches.
J. Pereira-Leal, M. Seabra
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Stabilization of microtubules by GTP analogues
Biochemical and Biophysical Research Communications, 1990We recently demonstrated that the nonhydrolyzable analogues of GTP (GMPPCP and GMPPNP) and ATP support the elongation phase of tubulin assembly and are incorporated into the E-site of polymerized tubulin. In this report we studied the stability of microtubules containing GTP analogues by examining length redistributions after shearing at polymer steady
Magdalena R. Mejillano +2 more
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The effect of GTP on benzodiazepine receptors
European Journal of Pharmacology, 1982GTP decreases the specific binding of [3H]flunitrazepam to cerebral cortical membrane sites. Scatchard analysis data show that GTP does not alter the maximum binding sites (Bmax), but increases the dissociation constant (KD) for [3H]flunitrazepam. GTP also inhibits the specific binding of the benzodiazepine antagonist [3H]CGS-8216. The specific binding
Jim C. Fong +2 more
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Annual Review of Cell and Developmental Biology, 2013
Shape changes and topological remodeling of membranes are essential for the identity of organelles and membrane trafficking. Although all cellular membranes have common features, membranes of different organelles create unique environments that support specialized biological functions.
Tina H. Lee +4 more
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Shape changes and topological remodeling of membranes are essential for the identity of organelles and membrane trafficking. Although all cellular membranes have common features, membranes of different organelles create unique environments that support specialized biological functions.
Tina H. Lee +4 more
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Expression cloning to identify monomeric GTP-binding proteins by GTP overlay
2001Publisher Summary More than 70 small Ras-related GTP-binding proteins have been identified and additional members of the family continue to be discovered. The majority of these proteins have been isolated by screening genomic or cDNA libraries at low stringency with oligonucleotide mixes corresponding to the conserved guanine nucleotide-binding ...
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Current Opinion in Structural Biology, 1991
Abstract There has been much progress this year in characterizing the complex series of post-translational modifications important for GTP-binding protein function. In addition, the long-awaited molecular characterization of a G protein that regulates phospholipase C activity has been reported.
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Abstract There has been much progress this year in characterizing the complex series of post-translational modifications important for GTP-binding protein function. In addition, the long-awaited molecular characterization of a G protein that regulates phospholipase C activity has been reported.
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Determination of GTP loading on Rho
2000Publisher Summary This chapter discusses the determination of guanosine 5'-triphosphate (GTP) loading on Rho. Rho is a member of the Ras superfamily of low molecular weight GTPase that is implicated in the regulation of actin cytoskeleton organization.
Martin A. Schwartz, Xiang-Dong Ren
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