Title |
Are nicotinic acetylcholine receptors coupled to G proteins?
|
---|---|
Published in |
BioEssays, October 2013
|
DOI | 10.1002/bies.201300082 |
Pubmed ID | |
Authors |
Nadine Kabbani, Jacob C. Nordman, Brian A. Corgiat, Daniel P. Veltri, Amarda Shehu, Victoria A. Seymour, David J. Adams |
Abstract |
It was, until recently, accepted that the two classes of acetylcholine (ACh) receptors are distinct in an important sense: muscarinic ACh receptors signal via heterotrimeric GTP binding proteins (G proteins), whereas nicotinic ACh receptors (nAChRs) open to allow flux of Na+, Ca2+, and K+ ions into the cell after activation. Here we present evidence of direct coupling between G proteins and nAChRs in neurons. Based on proteomic, biophysical, and functional evidence, we hypothesize that binding to G proteins modulates the activity and signaling of nAChRs in cells. It is important to note that while this hypothesis is new for the nAChR, it is consistent with known interactions between G proteins and structurally related ligand-gated ion channels. Therefore, it underscores an evolutionarily conserved metabotropic mechanism of G protein signaling via nAChR channels. |
X Demographics
Geographical breakdown
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Spain | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 1 | 1% |
Brazil | 1 | 1% |
Unknown | 92 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 22 | 23% |
Student > Bachelor | 12 | 13% |
Student > Master | 11 | 12% |
Researcher | 9 | 10% |
Student > Doctoral Student | 6 | 6% |
Other | 18 | 19% |
Unknown | 16 | 17% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 21 | 22% |
Neuroscience | 18 | 19% |
Biochemistry, Genetics and Molecular Biology | 18 | 19% |
Pharmacology, Toxicology and Pharmaceutical Science | 6 | 6% |
Chemistry | 5 | 5% |
Other | 8 | 9% |
Unknown | 18 | 19% |