cAMP


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adenosine

 [ah-den´o-sēn]
1. a nucleoside composed of the pentose sugar d-ribose and adenine. It is a structural subunit of ribonucleic acid (RNA). Adenosine nucleotides are involved in the energy metabolism of all cells. Adenosine can be linked to a chain of one, two, or three phosphate groups to form adenosine monophosphate (AMP), adenosine diphosphate (ADP), or adenosine triphosphate (ATP). The bond between the phosphate groups in ADP or the two bonds between phosphate groups in ATP are called high-energy bonds, because hydrolysis of a high-energy bond provides a large amount of free energy that can be used to drive other processes that would not otherwise occur. The energy that is derived from the breakdown of carbohydrates, fats, or proteins is used to synthesize ATP. The energy stored in ATP is then used directly or indirectly to drive all other cellular processes that require energy, of which there are four major types: (1) the transport of molecules and ions across cell membranes against concentration gradients, which maintains the internal environment of the cell and produces the membrane potential for the conduction of nerve impulses; (2) the contraction of muscle fibers and other fibers producing the motion of cells; (3) the synthesis of chemical compounds; (4) the synthesis of other high-energy compounds.
Adenosine.
2. a preparation of adenosine, which acts as a cardiac depressant of automaticity in the sinus node and conduction in the atrioventricular node and as a vasodilator. It is used as an antiarrhythmic and is also used to cause coronary vasodilation during myocardial perfusion imaging in patients who cannot exercise adequately to perform an exercise stress test, administered intravenously.
cyclic adenosine monophosphate a cyclic nucleotide, adenosine 3′,5′-cyclic monophosphate, involved in the action of many hormones, including catecholamines, ACTH, and vasopressin. The hormone binds to a specific receptor on the cell membrane of target cells. This activates an enzyme, adenylate cyclase, which produces cyclic AMP from ATP. Cyclic AMP acts as a second messenger activating other enzymes within the cell. Abbreviated 3′,5′-AMP, cAMP, and cyclic AMP.
adenosine diphosphate (ADP) a nucleotide, adenosine 5′-pyrophosphate, produced by the hydrolysis of adenosine triphosphate (ATP). It is then converted back to ATP by the metabolic processes oxidative phosphorylation, glycolysis, and the tricarboxylic acid cycle.
adenosine monophosphate (AMP) a nucleotide, adenosine 5′-phosphate, involved in energy metabolism and nucleotide synthesis. Called also adenylic acid.
adenosine triphosphatase (ATPase) a term used to refer to the enzymatic activity of certain intercellular processes that split ATP to form ADP and inorganic phosphate, when the energy released is not used for the synthesis of chemical compounds. Examples are the splitting of ATP in muscle contraction and the transport of ions across cell membranes.
adenosine triphosphate (ATP) a nucleotide, adenosine 5′-triphosphate, occurring in all cells, where it stores energy in the form of high-energy phosphate bonds. Free energy is supplied to drive metabolic reactions, to transport molecules against concentration gradients (active transport), and to produce mechanical motion (contraction of myofibrils and microtubules), when ATP is hydrolyzed to ADP and inorganic phosphate or to AMP and inorganic pyrophosphate. ATP is also used to produce high-energy phosphorylated intermediary metabolites, such as glucose 6-phosphate.

cAMP

Abbreviation for adenosine 3',5'-cyclic monophosphate (cyclic AMP).

cAMP

cyclic adenosine monophosphate.

cAMP

abbr.
cyclic AMP

cAMP

cAMP

Abbreviation for adenosine 3', 5'-cyclic monophosphate.

cAMP

cyclic adenosine monophosphate

cAMP

cyclic adenosine monophosphate.
References in classic literature ?
I have thought much, as I said, and the result of my thinking has assured me that Achmet Zek is dead--for otherwise you would never have dared return to his camp, unless you be either a braver man or a bigger fool than I have imagined.
Even now they are doubtless marching on this camp, for they were sent by Menelek to punish Achmet Zek and his followers for a raid upon an Abyssinian village.
I go now to give the order for the breaking of camp early on the morrow," and he rose to leave the tent.
The evening following her interview with Mohammed Beyd, Jane Clayton sat for some time at the opening of her tent watching the rough activities of the camp.
When Schneider and Schmidt left them and set out in the direction of their own camp, it was with feelings of far greater relief than they had experienced in many a day.
Also, they were to have assistance in capturing the woman, or rather women, for when Momulla had learned that there was a black woman in the other camp he had insisted that she be brought along as well as the white woman.
They marched straight to the tent in which they might expect to find him at that hour of the day, for though it would have been more comfortable for the entire party to remain aboard the ship, they had mutually decided that it would be safer for all concerned were they to pitch their camp ashore.
Shortly after mid-day, a great uproar of shouting and cheering broke out in the camp, with mustering of men and calling of bugles.
All day long the sound of revelry and of rejoicing from the crowded camp swelled up to the ears of the Englishmen, and they could see the soldiers of the two nations throwing themselves into each other's arms and dancing hand-in-hand round the blazing fires.
For me, I will ride into their camp with my squire and two archers.
So many small parties of French and Spanish horse were sweeping hither and thither that the small band attracted little notice, and making its way at a gentle trot across the plain, they came as far as the camp without challenge or hindrance.
For days and nights at a time Virginia never saw him, his meals being passed in to him by Sing through a small trap door that had been cut in the partition wall of the "court of mystery" as von Horn had christened the section of the camp devoted to the professor's experimentations.