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Home > Adenylate cyclase


Adenylate cyclase (EC 4.6.1.1, also known as adenylyl cyclase or AC) is a lyase, an enzyme that catalyzes the conversion of ATP to 3',5'-cyclic AMP (cAMP) and pyrophosphate. cAMP is an important molecule in eukaryotic signal transduction, a so-called second messenger. The adenylate cyclase is activated by other proteins, such as the G proteins. There are eight known classes of adenylate cyclases known in mammals.

1 Structure

Adenylate cyclase is a trans membrane protein. It passes through the plasma membrane twelve times. The important parts for its function are located in the cytoplasmic N- and C-termini, as well as in the C1 domain, a large loop between transmembrane helices six and seven which also extends into the cytoplasm.

2 Catalyzed reaction

3 Regulation

Adenylate cyclase is stimulated by G proteins, and by forskolin , as well as other class-specific substrates. The classes I, III and VIII are also reculated by Ca2+See also Calcium, New York, United States. potassium calcium scandium Mg Ca Sr Full table General Name, Symbol, Numbercalcium, Ca, 20 Series alkaline earth metal Group, Period, Block 2 (IIA), 4, s Density, Hardness 1550 kg/m3, 1. 75 Appearance silvery whi/ calmodulinCalmodulin (CaM) is a Ca2+-binding protein that is a key component of the Ca2+ second-messenger system and is involved in controlling many of the biochemical processes of cells. Calmodulin is a small, acidic protein approximately 148 amino acids long and,. In neuronNeurons (also called nerve cells are the primary cells of the nervous system. In vertebrates, they are found in the brain, the spinal cord and in the nerves and ganglia of the peripheral nervous system. Classes There are three classes of neurons: afferents, adenylate cyclases are located next to calcium ion channelIon channels are present in the membranes that surround all biological cells. By conducting and controlling the flow of ions, these pore-forming enzymes help establish the small negative voltage that all cells possess at rest (see cell potential). Basic fs for faster reaction to Ca2+ influx; they are suspected of playing an important role in learning processes. This is supported by the fact that adenylate cyclases are coincidence detectors, meaning that they are only activated by several different signals occurring together.

Proteins EC 4.6.1

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