PubMed HealthSearch

Biomedical subjects

D Coppe

Publications and source records attributed to D Coppe.

2 recordsLinked to original sources

Adenyl cyclase.

Certain hormones regulate the activity of their target cells by stimulating adenyl cyclase, which is an enzyme located within the target cell's plasma membrane. Adenyl cyclase catalyzes the formation of cyclic AMP, which is released into the cell and modulates cell functions. In this communication the characteristics of adenyl cyclase are reviewed. The coupling between hormone receptors and this enzyme is discussed as is the ability of agents such as hormones, ATP, magnesium, calcium, guanine nucleotides and prostaglandins to alter cyclase activity. Several diseases that result from derangements of the adenyl cyclase system are known and the molecular bases for these diseases are discussed in this review.

Adenosine Triphosphate

Cyclic AMP.

Cyclic AMP mediates the effects of many hormones on their target cells. Some of the mechanisms by which this occurs are discussed in this review. The role of cyclic AMP in regulating glycogen metabolism in liver and skeletal muscle is firmly established. Data suggesting that cyclic AMP mediates hormonally stimulated salivary gland amylase secretion, cardiac muscle contractility, smooth muscle relaxation, and platelet aggregation are summarized.

2',3'-Cyclic-Nucleotide Phosphodiesterases