Cited by 187Receptor Mechanisms and SignalingNeuropeptides and Animal PhysiologyProtein Kinase Regulation and GTPase Signaling

Pertussis toxin inhibits enkephalin stimulation of GTPase of NG108-15 cells.

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Burns, D L, Hewlett, E L, Moss, J, Vaughan, M·1983·Journal of Biological Chemistry

Abstract

In neuroblastoma-glioma (NG108-15) hybrid cells, opiates inhibit adenylate cyclase and stimulate a low Km GTPase. It has been postulated that the stimulation of GTPase plays a role in opiate inhibition of adenylate cyclase (Koski, G., and Klee, W. A. (1981) Proc. Natl. Acad. Sci. U.S.A. 78, 4185-4189). Treatment of NG108-15 cells with pertussis toxin attenuates receptor-mediated inhibition of adenylate cyclase. The toxin acts by catalyzing the ADP-ribosylation of a 41,000-dalton substrate believed to be a part of the receptor-adenylate cyclase complex. We have found that toxin treatment of NG108-15 results in inhibition of the opiate-stimulated GTPase. The concentration of toxin required for inhibition of this GTPase was similar to that needed for both attenuation of opiate inhibition of adenylate cyclase and ADP ribosylation of the 41,000-dalton substrate. Inhibition of the opiate-induced GTPase by pertussis toxin in isolated membranes required NAD, consistent with the hypothesis that this effect of the toxin resulted from ADP ribosylation of a protein component of the system. Since the opiate-stimulated GTPase is believed to play a role in the receptor-mediated decrease in adenylate cyclase activity, inhibition of this GTPase may be an important part of the mechanism by which the toxin interferes with opiate action on adenylate cyclase.

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Crossref · 10.1016/s0021-9258(18)33004-7

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Authors
Burns, D. L., Hewlett, E. L., Moss, J., & Vaughan, M.
Affiliations
National Institutes of Health (US)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1983-02
Volume
258
Issue
3
Pages
1435-1438
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1585463957
Cited by
187
References
32
Citations by year
2022: 1 · 2016: 2 · 2015: 1 · 2012: 1
FWCI
12.84
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
pertussis toxin, enkephalin, GTPase, NG108-15 cells, ADP-ribosylation, opioid receptors, NAD+
MeSH terms
Adenosine Diphosphate Ribose, Analgesics, Animals, Bacterial Toxins, Bordetella pertussis, Cell Line, Enkephalin, Methionine, Glioma, Hybrid Cells, Kinetics, Molecular Weight, Neuroblastoma, Virulence Factors, Bordetella, Phosphoric Monoester Hydrolases, GTP Phosphohydrolases, Pertussis Toxin, Adenylate Cyclase Toxin, Mice, Rats

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