| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
|---|---|
| PTR | patellar tendon reflex; patient termination record; patient to return; peripheral total resistance; ... |
| SGR | Sachs-Georgi reaction; Shwartzman generalized reaction; skin galvanic reflex; submandibular gland re... |
| WFR | Weil-Felix reaction; wheal-and-flare reaction |
| WR | Wassermann reaction; water retention; weakly reactive; weak response; whole response; wiping reactio... |
| nucleotide binding fold | Protein motif consisting of a fold or pocket with certain conserved residues, required for the binding of nucleotides. (18 Nov 1997) |
|---|---|
| nucleotide deaminases | <enzyme> Catalyze the hydrolysis of nucleotides with the elimination of ammonia. Registry number: EC 3.5.4 (12 Dec 1998) |
| nucleotide deletion | Deletion of a single nucleotide, which in a transcribed gene will lead to a frameshift mutation. Synonym: point deletion. (05 Mar 2000) |
| nucleotide mapping | Two-dimensional separation and analysis of nucleotides. (12 Dec 1998) |
| nucleotide pair | <molecular biology> Two nitrogenous bases (adenine and thymine or guanine and cytosine) held together by weak bonds. Two strands of DNA are held together in the shape of a double helix by the bonds between base pairs. (09 Oct 1997) |
| nucleotide phosphotransferase | <enzyme> Transfers phosphoric acid from an organic phosphate donor to the 2' or 3' hydroxyls of nucleosides and nucleotides Registry number: EC 2.7.1.- (26 Jun 1999) |
| nucleotide pyrophosphate transferase | <enzyme> Transfers the beta, gamma pyrophosphate group from ATP to 3'-hydroxy group of ribonucleotides, oligonucleotides or trna Registry number: EC 2.7.6.- (26 Jun 1999) |
| diphosphopyridine nucleotide | nAD |
| thymine nucleotide | A major constituent of DNA. Synonym: thymidine 5'-monophosphate, thymine nucleotide. (05 Mar 2000) |
| triphosphopyridine nucleotide | Former name for nicotinamide adenine dinucleotide phosphate. (05 Mar 2000) |
| flavin nucleotide | <biochemistry> Flavin derivatives that act as prosthetic groups (covalently linked cofactors) for flavin enzymes. (18 Nov 1997) |
| 2',3'-cyclic nucleotide 2'-phosphodiesterase | <enzyme> Catalyses the hydrolysis of the 2'-phosphodiesterase bond to yield nucleoside 3'phosphate Registry number: EC 3.1.4.16 Synonym: 2',3'-cyclic nucleotide 2'-phosphohydrolase (26 Jun 1999) |
| 2',3'-cyclic nucleotide 3'-phosphodiesterase | <enzyme> Catalyses the hydrolysis of the 3'-phosphoesterase bond to yield nucleoside 2'-phosphate Registry number: EC 3.1.4.37 Synonym: 2',3'-cyclic nucleotide 3'-phosphohydrolase, 2',3'-cn phosphodiesterase, 2',3'-cnpase (26 Jun 1999) |
| 2',3'-cyclic-nucleotide phosphodiesterases | <enzyme> Nucleoside-2',3'-cyclic phosphate nucleotidohydrolase. Enzymes that catalyze the hydrolysis of the 2'- or 3'- phosphate bonds of 2',3'-cyclic nucleotides. Also hydrolyzes nucleoside monophosphates. Registry number: EC 3.1.4.- (12 Dec 1998) |
| 3',5'-cyclic-nucleotide phosphodiesterase | <enzyme> An enzyme that catalyses the hydrolysis of cyclic AMP to form adenosine 5'-phosphate. The enzyme is widely distributed in animal tissue and controls the level of intracellular cyclic AMP. Also acts on 3',5'-cyclic imp and 3',5'-cyclic GMP. Chemical name: 3',5'-Cyclic-nucleotide 5'-nucleotidohydrolase Registry number: EC 3.1.4.17 (12 Dec 1998) |