| NPPH | nucleotide pyrophosphohydrolase |
|---|---|
| NT | nasotracheal; neotetrazolium; neurotensin; neurotrophic; neutralization test; nicotine tartrate; non... |
| nt | nucleotide |
| PN | papillary necrosis; parenteral nutrition; penicillin; perceived noise; percussion note; periarteriti... |
| TAN | total adenine nucleotide; total ammonia nitrogen |
| cyclic phosphoric acid | In general, a linear polymer of phosphoric acid residues in pyrophosphate linkage in which the a and ω residues are similarly linked to make one endless loop or cyclic compound, specifically, a generic term applied to compounds in which one phosphoric acid residue is esterified to two hydroxyl groups of a single carbon chain, as in adenosine 3',5'-phosphoric acid, adenosine 2',3'-phosphoric acid, etc. (05 Mar 2000) |
|---|---|
| cyclic phosphorylation | Any process in which a phosphatide ester forms a cylic diester by linkage to a neighbouring hydroxyl group. (18 Nov 1997) |
| cyclic photophosphorylation | Process by which light energy absorbed by photosystem I in the chloroplast can be used to generate ATP without concomitant reduction of NADP or other electron acceptors. Energised electrons are passed from PS I to ferredoxin and thence along a chain of electron carriers and back to the reaction centre of PS I, generating ATP en route. (18 Nov 1997) |
| cyclic strabismus | A strabismus that appears and disappears in rhythym, most frequently at 48-hour intervals. (05 Mar 2000) |
| cyclic uridine 3',5'-monophosphate | A cyclic nucleotide involved in metabolic regulation; inhibits the growth of some tumours. (05 Mar 2000) |
| hydrocarbons, cyclic | Organic compounds composed exclusively of carbon and hydrogen forming a closed ring that may be either alicyclic or aromatic. (12 Dec 1998) |
| dibutyryl cyclic AMP | An analogue of cyclic AMP that shares some of the pharmacological effects of this nucleotide, but is generally believed to enter cells more readily on account of its greater hydrophobicity. (18 Nov 1997) |
| dibutyryl cyclic GMP | <chemical> N-(1-oxobutyl)-cyclic 3',5'-(hydrogen phosphate)-2'-butanoate guanosine. A derivative of cyclic GMP. It has a higher resistance to extracellular and intracellular phosphodiesterase than cyclic GMP. Chemical name: Guanosine, N-(1-oxobutyl)-, cyclic 3',5'-(hydrogen phosphate) 2'-butanoate (12 Dec 1998) |
| DNA-binding protein, cyclic AMP-responsive | A protein that has been shown to function as a calcium regulated transcription factor as well as a substrate for depolarisation-activated calcium calmodulin-dependent protein kinases I and II. This protein functions to integrate both calcium and camp signals. (12 Dec 1998) |
| inositol cyclic 1,2-phosphate 1-phosphodiesterase | <enzyme> Converts inositol 1:2-cyclic phosphate to inositol 2-phosphate; do not confuse with inositol 1,2 cyclic-phosphate 2-phosphohydrolase see annexin III Registry number: EC 3.1.4.- Synonym: cins(1,2)p hydrolase II (26 Jun 1999) |
| ethers, cyclic | Compounds of the general formula r-o-r arranged in a ring or crown formation. (12 Dec 1998) |
| 3',5'-cyclic AMP synthetase | <enzyme> Enzyme responsible for the ATP. (06 May 1997) |
| 3',5'-cyclic-GMP phosphodiesterase | <enzyme> An enzyme that catalyses the hydrolysis of cyclic GMP to yield guanosine-5'-phosphate. Chemical name: 3',5'-Cyclic-GMP 5'-nucleotidohydrolase Registry number: EC 3.1.4.35 (12 Dec 1998) |
| 8-bromo cyclic adenosine monophosphate | <chemical> 8-bromoadenosine cyclic 3',5'-(hydrogen phosphate). A long-acting derivative of cyclic AMP. It is an activator of cyclic AMP-dependent protein kinase, but resistant to degradation by cyclic AMP phosphodiesterase. Chemical name: Adenosine, 8-bromo-, cyclic 3',5'-(hydrogen phosphate) (12 Dec 1998) |