cAMP


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Related to cAMP: Cyclic adenosine monophosphate

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 ?
It was within an hour of dusk--none too much time to allow in which to pitch camp in the tropics, where night follows day suddenly--when a halt was called, as a turn of the river showed a little clearing on the edge of the forest-bound river.
In an instant the whole camp was in motion; the meanest soldier arousing from his lair to witness the departure of his comrades, and to share in the excitement and incidents of the hour.
I returned again to my old camp, which was not disturbed in my absence.
Morison Baynes entered the camp to be greeted by Hanson, Korak slipped noiselessly into a near-by tree.
If in the neighborhood of your camp there should be any hilly country, ponds surrounded by aquatic grass, hollow basins filled with reeds, or woods with thick undergrowth, they must be carefully routed out and searched; for these are places where men in ambush or insidious spies are likely to be lurking.
The camp was instantly in arms; but the Indians retreated with yells of exultation, carrying off several of the horses under cover of the night.
On the second day of their sojourn, as Ben Jones, John Day, and others of the hunters were in pursuit of game, they came upon an Indian camp on the open prairie, near to a small stream which ran through a ravine.
When all was safe as possible against attack of wild beasts and savage men, Lieutenant Charpentier placed sentries about the little camp and the tired and hungry men threw themselves upon the ground to sleep.
I think that the thing can be accomplished, for I was a guest of the raider's before I knew the nature of the man, and those at the camp are not aware that I turned against him when I discovered his villainy.
We shall bury the child here, and you will return with me at once to my own camp.
For a week the men were busy constructing the new camp, but never again was Virginia left without a sufficient guard for her protection.
The bushmen swarmed in the camp in increasing numbers, and they were always making presents of yams and taro, of pig and fowl, and of wild fruits and vegetables.