Results 201 to 210 of about 41,822 (243)

The regulation of mitochondrial physiology by organelle‐associated GTP‐binding proteins

Cell Biochemistry and Function, 2002
AbstractRecent studies have shown that GTP‐binding proteins can modulate mitochondrial membrane fusion and fission. Furthermore, GTP‐binding proteins can regulate the binding of ribosomes to the mitochondrial membrane and may facilitate the import of proteins through contact points between inner and outer mitochondrial membranes.
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Regulation of phospholipase D by low molecular weight GTP-binding proteins

Journal of Lipid Mediators and Cell Signalling, 1996
Phospholipase D (PLD) is believed to play an important role in cell signal transduction: PLD catalyzes the hydrolysis primarily of phosphatidylcholine (PC) to produce phosphatidic acid that may serve as a lipid second messenger. Although the mechanism of PLD activation has not yet been fully understood, a member of the low molecular weight GTP-binding ...
Y, Kanaho, T, Yokozeki, H, Kuribara
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Regulation of rod GTP binding protein by guanine nucleotides.

Journal of biochemistry, 1985
The rod GTP-binding protein in the bovine disk membrane seems to exist as oligomers in the dark. G alpha and G beta do not interact strongly, and G gamma may be required for G alpha . GDP to dimerize.
H, Shichi, R L, Somers
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Regulation of the human neutrophil NADPH oxidase by the Rac GTP-binding proteins

Current Opinion in Cell Biology, 1994
Recent progress in our understanding of the regulation of the phagocyte NADPH oxidase by the Rac GTP-binding protein(s) has provided the first detailed glimpse into the mechanisms of leukocyte regulation by a small GTP-binding protein. Studies over the past year have indicated that the activity of the NADPH oxidase can be modulated by regulation of the
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Characterization of DRGs, developmentally regulated GTP-binding proteins, from pea and Arabidopsis

Plant Molecular Biology, 1999
Developmentally regulated GTP-binding proteins (DRGs) from animals and fungi are highly conserved but have no known function. Here we characterize DRGs from pea (PsDRG) and Arabidopsis (AtDRG). Amino acid sequences of AtDRG and PsDRG were 90% identical to each other and about 65% identical to human DRG.
M L, Devitt, K J, Maas, J P, Stafstrom
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Regulation of phagocyte function by low molecular weight GTP‐binding proteins

European Journal of Haematology, 1993
Abstract:  The mechanisms used by phagocytic leukocytes in the process of bacterial killing are regulated by GTP‐binding proteins of the Ras superfamily. In particular, the formation of toxic oxygen metabolites via the NADPH oxidase requires the action of both Rac and Rap1A proteins.
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Tissue-specific variations in the expression and regulation of the small GTP-binding protein Rho

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 1994
Rho proteins are involved in the regulation of the assembly of the microfilamental cellular network and are known to be specific substrates for the ADP-ribosyltransferase C3 from Clostridium botulinum. Here, we studied the distribution of Rho and Rho-regulating proteins in extracts from various rabbit tissues.
G, Fritz, P, Lang, I, Just
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Common Properties of Receptors Coupled to GTP Binding Regulator Proteins

1989
A number of membrane receptors coupled to GTP binding regulatory proteins have recently been shown to share structural propertie at the level both of the genes and of the corresponding proteins (Fig. 1 and 2). By comparing results obtained for α2-, β1- and β2-adrenergic catecholamine receptors, M1 to M5 muscarinic acetylcholine receptors as well as ...
L. Emorine, S. Marullo, M.-M. Sutren, C. Delavier, Y. Eshdat, G. Raposo, A. D. Strosberg   +6 more
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Regulation of G protein-coupled receptor endocytosis by ARF6 GTP-binding proteins

Biochemistry and Cell Biology, 2004
The function of G protein-coupled receptors is regulated by a broad variety of membrane-bound and intracellular proteins. These act in concert to activate signaling pathways that will lead to the desensitization of activated receptors and, for most receptor types, their trafficking to intracellular compartments.
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Rab3 Small GTP—Binding Proteins: Regulation by Calcium/Calmodulin

2003
Rab proteins, forming a subfamily of 52 predominantly membrane-bound, low molecular weight GTP-binding proteins (G-proteins) of the Ras superfamily, are involved in vesicle traffic between intracellular organelles, endocytosis and exocytosis, and may be regulated by calcium (Ca2 +) and/or calmodulin (CaM).
Ranjinder S. Sidhu, Richard R. Clough, Rajinder P. Bhullar   +2 more
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