Activation of Gq by Muscarinic Acetylcholine Receptor M3

Stable Identifier
Reaction [transition]
Mus musculus
SVG |   | PPTX  | SBGN
Activation of Gq by Muscarinic Acetylcholine Receptor M3

The binding of acetylcholine to the Muscarinic Acetylcholine Receptor M3 activates the heterotrimeric G protein, Gq, associated with the M3 receptor. Activation occurs through protein-protein interaction and results in the alpha subunit of Gq exchanging GDP for GTP (i.e releasing GDP and binding GTP). The 3 subunits of the G protein then dissociate into an alpha:GTP complex and a beta:gamma complex.

Literature References
PubMed ID Title Journal Year
17919190 Role of the M3 muscarinic acetylcholine receptor in beta-cell function and glucose homeostasis

Gautam, D, Han, SJ, Duttaroy, A, Mears, D, Hamdan, FF, Li, JH, Cui, Y, Jeon, J, Wess, J

Diabetes Obes Metab 2007
16753580 A critical role for beta cell M3 muscarinic acetylcholine receptors in regulating insulin release and blood glucose homeostasis in vivo

Gautam, D, Han, SJ, Hamdan, FF, Jeon, J, Li, B, Li, JH, Cui, Y, Mears, D, Lu, H, Deng, C, Heard, T, Wess, J

Cell Metab 2006
Catalyst Activity

guanyl-nucleotide exchange factor activity of Muscarinic Receptor M3: Acetylcholine Complex [plasma membrane]

Orthologous Events
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