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Heterotrimeric G Proteins and Disease
2006Heterotrimeric G proteins attached to the cell membrane convey signals from G protein-coupled receptors in response to stimulation by a number of hormones, neurotransmitters, chemokines, and pharmacological agents to intracellular signaling cascades.
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Heterotrimeric G proteins in heart disease
Cellular Signalling, 1996Heterotrimeric G proteins couple many types of cell surface receptors to intracellular effectors such as enzymes or ion channels. In the mammalian heart, G protein-mediated signalling pathways are involved in the regulation of contractile force, heart rate, conduction velocity, and relaxation.
P, Schnabel, M, Böhm
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The Plant Heterotrimeric G-Protein Complex
Annual Review of Plant Biology, 2007Heterotrimeric G-protein complexes couple extracellular signals via cell surface receptors to downstream enzymes called effectors. Heterotrimeric G-protein complexes, together with their cognate receptors and effectors, operate at the apex of signal transduction.
Brenda R S, Temple, Alan M, Jones
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Presynaptic Signaling by Heterotrimeric G-Proteins
2008G-proteins (guanine nucleotide-binding proteins) are membrane-attached proteins composed of three subunits, alpha, beta, and gamma. They transduce signals from G-protein coupled receptors (GPCRs) to target effector proteins. The agonistactivated receptor induces a conformational change in the G-protein trimer so that the alpha-subunit binds GTP in ...
David A, Brown, Talvinder S, Sihra
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Heterotrimeric G Protein Cycle
Science's STKE, 2004This teaching resource provides two types of insight into the heterotrimeric G protein cycle. The interactive animation shows the basic heterotrimeric G protein cycle and allows the user to then add three different regulators of the cycle, an RGS (regulator of G protein signaling) protein, a GDI (guanine nucleotide dissociation inhibitor) protein, or a
Anita M. Preininger, Heidi E. Hamm
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2022
Heterotrimeric G proteins, commonly known as G proteins are members of the large GTPase superfamily that are conserved from bacteria to mammals. G proteins play an essential role in cellular signaling by coupling many cell surface receptors to effectors on the plasma membrane.
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Heterotrimeric G proteins, commonly known as G proteins are members of the large GTPase superfamily that are conserved from bacteria to mammals. G proteins play an essential role in cellular signaling by coupling many cell surface receptors to effectors on the plasma membrane.
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Dissociation of Heterotrimeric G Proteins in Cells
Science Signaling, 2008Heterotrimeric G proteins dissociate into their component Gα and Gβγ subunits when these proteins are activated in solution. Until recently, it has not been known if subunit dissociation also occurs in cells. The development of optical methods to study G protein activation in live cells has made it possible to demonstrate heterotrimer dissociation at ...
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Heterotrimeric G-proteins in plant development
Frontiers in Bioscience, 2008Signaling through heterotrimeric G-proteins (G-proteins) is a conserved mechanism found in all eukaryotes. In plants, the repertoire of G-protein signaling complex is much simpler than in metazoans. Specifically, the genome of the model plant, Arabidopsis, encodes only one canonical Galpha, one Gbeta, and two Ggamma subunits.
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Biology of heterotrimeric G-protein signaling
Critical Care Medicine, 2000The G proteins are components of a complex membrane signaling system designed to modulate extracellular signals as they are transmitted into the cell. The principal components are the receptor, the G proteins including the alpha, beta, gamma subunits and the effector.
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2016
A major system used by eukaryotic organisms to sense and respond to environmental stimuli involves heterotrimeric G-proteins and their cognate membrane-bound receptors, known as G protein-coupled receptors (GPCRs). This chapter introduces the components of heterotrimeric G-protein-mediated signaling and highlights the effector pathways downstream of ...
Rekha Deka +3 more
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A major system used by eukaryotic organisms to sense and respond to environmental stimuli involves heterotrimeric G-proteins and their cognate membrane-bound receptors, known as G protein-coupled receptors (GPCRs). This chapter introduces the components of heterotrimeric G-protein-mediated signaling and highlights the effector pathways downstream of ...
Rekha Deka +3 more
openaire +1 more source