G proteins control diverse pathways of transmembrane signaling

M. Freissmuth, P. J. Casey, A. G. Gilman

Research output: Contribution to journalArticle

293 Citations (Scopus)

Abstract

Hormones, neurotransmitters, and autacoids interact with specific receptors and thereby trigger a series of molecular events that ultimately produce their biological effects. These receptors, localized in the plasma membrane, carry binding sites for ligands as diverse as peptides (e.g., glucagon, neuropeptides), lipids (e.g., prostaglandins), nucleosides and nucleotides (e.g., adenosine), and amines (e.g., catecholamines, serotonin). These receptors do not interact directly with their respective downstream effector (i.e., an ion channel and/or an enzyme that synthesizes a second messenger); rather, they control one or several target systems via the activation of an intermediary guanine nucleotide-binding regulatory protein or G protein. G proteins serve as signal transducers, linking extracellulary oriented receptors to membrane-bound effectors. Traffic in these pathways is regulated by a GTP (on)-GDP (off) switch, which is regulated by the receptor. The combination of classical biochemistry and recombinant DNA technology has resulted in the discovery of many members of the G protein family. These approaches, complemented in particular by electrophysiological experiments, have also identified several effectors that are regulated by G proteins. We can safely assume that current lists of G proteins and the functions that they control are incomplete.

Original languageEnglish (US)
Pages (from-to)2125-2139
Number of pages15
JournalFASEB Journal
Volume3
Issue number10
StatePublished - 1989

Fingerprint

G-proteins
GTP-Binding Proteins
receptors
Autacoids
Genetic engineering
Biochemistry
recombinant DNA
Guanine Nucleotides
nucleosides
second messengers
glucagon
regulatory proteins
neuropeptides
ion channels
Second Messenger Systems
catecholamines
adenosine
Cell membranes
neurotransmitters
Guanosine Triphosphate

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Cell Biology

Cite this

Freissmuth, M., Casey, P. J., & Gilman, A. G. (1989). G proteins control diverse pathways of transmembrane signaling. FASEB Journal, 3(10), 2125-2139.

G proteins control diverse pathways of transmembrane signaling. / Freissmuth, M.; Casey, P. J.; Gilman, A. G.

In: FASEB Journal, Vol. 3, No. 10, 1989, p. 2125-2139.

Research output: Contribution to journalArticle

Freissmuth, M, Casey, PJ & Gilman, AG 1989, 'G proteins control diverse pathways of transmembrane signaling', FASEB Journal, vol. 3, no. 10, pp. 2125-2139.
Freissmuth M, Casey PJ, Gilman AG. G proteins control diverse pathways of transmembrane signaling. FASEB Journal. 1989;3(10):2125-2139.
Freissmuth, M. ; Casey, P. J. ; Gilman, A. G. / G proteins control diverse pathways of transmembrane signaling. In: FASEB Journal. 1989 ; Vol. 3, No. 10. pp. 2125-2139.
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