adenylyl cyclase assays to measure macrophage chemotactic protein-1 receptor function

اندازه‌گیری فعالیت آدنیلیل سیکلاز غشاء سلولی در حضور پروتئین کموتاکسیک ماکروفاژ

 Adenylyl cyclase is a membrane-bound enzyme that catalyzes the conversion of ATP to cAMP. The inhibition of adenylyl cyclase was carried out by measuring the ability of the macrophage chemotactic protein-1 to inhibit the forskolin-induced enzyme activity. Measurement of adenylyl cyclase activity was performed according to the procedure described by Wiegn.  Adenylyl cyclase activity in the pres...

G-Protein-Coupled Receptor MrgD Is a Receptor for Angiotensin-(1-7) Involving Adenylyl Cyclase, cAMP, and Phosphokinase A.

Angiotensin (Ang)-(1-7) has cardiovascular protective effects and is the opponent of the often detrimental Ang II within the renin-angiotensin system. Although it is well accepted that the G-protein-coupled receptor Mas is a receptor for the heptapeptide, the lack in knowing initial signaling molecules stimulated by Ang-(1-7) prevented definitive characterization of ligand/receptor pharmacology...

Adenylyl Cyclase Complex

Adenylyl Cyclase in Yeast

The adenylyl cyclase system of the yeast Saccharomyces cerevisiae contains the CYRl polypeptide, responsible for catalyzing formation of cAMP from ATP, and two RAS polypeptides, responsible for stimulation of cAMP synthesis by guanine nucleotides. We have determined hydrodynamic properties of yeast adenylyl cyclase in taurocholate extracts of wild type and RASdeficient membranes. In taurocholat...

Dexamethasone-Induced Ras Protein 1 Negatively Regulates Protein Kinase C : Implications for Adenylyl Cyclase 2 Signaling

We identified dexamethasone-induced Ras protein 1 (Dexras1) as a negative regulator of protein kinase C (PKC) , and the consequences of this regulation have been examined for adenylyl cyclase (EC 4.6.1.1) type 2 (AC2) signaling. Dexras1 expression in human embryonic kidney 293 cells completely abolished dopamine D2 receptor-mediated potentiation of AC2 activity, which is consistent with previou...

GGDEF domain is homologous to adenylyl cyclase.

The GGDEF domain is detected in many prokaryotic proteins, most of which are of unknown function. Several bacteria carry 12-22 different GGDEF homologues in their genomes. Conducting extensive profile-based searches, we detect statistically supported sequence similarity between GGDEF domain and adenylyl cyclase catalytic domain. From this homology, we deduce that the prokaryotic GGDEF domain is...