scispace - formally typeset
Open AccessJournal ArticleDOI

Organization and Ca2+ Regulation of Adenylyl Cyclases in cAMP Microdomains

Debbie Willoughby, +1 more
- 01 Jul 2007 - 
- Vol. 87, Iss: 3, pp 965-1010
TLDR
The regulation of many of the ACs by the ubiquitous second messenger Ca(2+) provides an overarching mechanism for integrating the activities of these two major signaling systems, and cAMP will exhibit distinct kinetics in discrete cellular domains.
Abstract
The adenylyl cyclases are variously regulated by G protein subunits, a number of serine/threonine and tyrosine protein kinases, and Ca2+. In some physiological situations, this regulation can be re...

read more

Citations
More filters

Ligand binding and activation mechanism og the glucagon-like peptide-1 receptor

TL;DR: This study found that a subsegment of the GLP-1R transmembrane domain containing TM2 to TM5 was sufficient to transfer compound 3 responsiveness to GluR, which encouraged a chimeric receptor approach to identify domains important for compound 3-mediated activation of GLP -1R.
Posted ContentDOI

Reactive astrocytes - comprehending when neurons play 4’33”

TL;DR: A feasible biophysical model of a homeostatic sensor is proposed, in which the sensing of inactivity depends on the presence and activation of G-protein-coupled receptors with different activation thresholds, and can help to explain the experimental observations linking prolonged neuronal inactivity to TNFα signaling.
Posted ContentDOI

Noradrenaline and ATP regulate white adipocyte adiponectin exocytosis: disturbed adrenergic and purinergic signalling in obesity-associated diabetes

TL;DR: In this paper, the importance of NA and ATP for the regulation of white adipocyte adiponectin exocytosis, at both cellular and molecular level, was determined.
References
More filters
Journal ArticleDOI

Lipid rafts and signal transduction

TL;DR: It is now becoming clear that lipid micro-environments on the cell surface — known as lipid rafts — also take part in this process of signalling transduction, where protein–protein interactions result in the activation of signalling cascades.
Journal ArticleDOI

Store-operated calcium channels.

TL;DR: The key electrophysiological features of I(CRAC) and other store-operated Ca(2+) currents and how they are regulated are described, and recent advances that have shed insight into the molecular mechanisms involved in this ubiquitous and vital Ca( 2+) entry pathway are considered.
Journal ArticleDOI

Cyclic nucleotide phosphodiesterases: functional implications of multiple isoforms

TL;DR: This article reviews many of the more important aspects about the structure, cellular localization, and regulation of each family of phosphodiesterases and places particular emphasis on new information obtained in the last few years about how differential expression andregulation of individual phosphodiesters relate to their function(s) in the body.
Journal ArticleDOI

The role of hormone receptors and GTP-regulatory proteins in membrane transduction

TL;DR: Cell membrane receptors for hormones and neurotransmitters form oligomeric complexes with GTP-regulatory proteins and inhibit the latter from reacting with G TP, and this theory may apply generally to membrane signal transduction involving surface receptors.
Journal ArticleDOI

Lipid Rafts: Elusive or Illusive?

TL;DR: There has been considerable recent interest in the possibility that the plasma membrane contains lipid "rafts," microdomains enriched in cholesterol and sphingolipids, and it seems that a definitive proof of raft existence has yet to be obtained.
Related Papers (5)