منابع مشابه
Regulators of G protein signaling & drugs of abuse.
Drugs of abuse such as opioids and stimulants share a common dopaminergic reward pathway; however, in response to continual intermittent exposure to such drugs, there are neuronal alterations leading to changes in behavior. Regulators of G protein signaling (RGS) are proteins that negatively regulate G protein signaling and are expressed in brain areas important for the pharmacology of abused d...
متن کاملProtons as second messenger regulators of G protein signaling.
In response to environmental stress, cells often generate pH signals that serve to protect vital cellular components and reprogram gene expression for survival. A major barrier to our understanding of this process has been the identification of signaling proteins that detect changes in intracellular pH. To identify candidate pH sensors, we developed a computer algorithm that searches proteins f...
متن کاملControl of Striatal Signaling by G Protein Regulators
Signaling via heterotrimeric G proteins plays a crucial role in modulating the responses of striatal neurons that ultimately shape core behaviors mediated by the basal ganglia circuitry, such as reward valuation, habit formation, and movement coordination. Activation of G protein-coupled receptors (GPCRs) by extracellular signals activates heterotrimeric G proteins by promoting the binding of G...
متن کاملRegulators of G protein signaling in neuropsychiatric disorders.
Regulators of G protein signaling (RGS) comprise a diverse group of about 40 proteins which determine signaling amplitude and duration via modulation of receptor/G protein or receptor/effector coupling. Several members of the RGS family are expressed in the brain, where they have precise roles in regulation of important physiological processes. The unique functions of each RGS can be attributed...
متن کاملRegulators of G Protein Signaling Attenuate the G Protein–mediated Inhibition of N-Type Ca Channels
Regulators of G protein signaling (RGS) proteins bind to the alpha subunits of certain heterotrimeric G proteins and greatly enhance their rate of GTP hydrolysis, thereby determining the time course of interactions among Galpha, Gbetagamma, and their effectors. Voltage-gated N-type Ca channels mediate neurosecretion, and these Ca channels are powerfully inhibited by G proteins. To determine whe...
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ژورنال
عنوان ژورنال: Journal of Neurochemistry
سال: 2002
ISSN: 0022-3042
DOI: 10.1046/j.1471-4159.2000.0751335.x