| nucleosomes | The repeating structural units of chromatin, each consisting of approximately 200 base pairs of DNA wound around a protein core. This core is composed of the histones h2a, h2b, h3, and h4. (12 Dec 1998) |
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| nucleospindle | The fusiform body in mitosis. (05 Mar 2000) |
| nucleotidase | <enzyme> Catalyses dephosphorylation of ribonucleoside 5'-monophosphates, ribonucleoside 3'-monophosphates and deoxyribonucleoside 3'-monophosphates Registry number: EC 3.1.3.31 Synonym: deoxyinosine-activated nucleotidase, nucleotide phosphohydrolase, cytosolic deoxyribonucleotide-activated nucleotidase, da-nucleotidase (26 Jun 1999) |
| nucleotidases | <enzyme> A class of enzymes that catalyze the conversion of a nucleotide and water to a nucleoside and orthophosphate. Registry number: EC 3.1.3.- (12 Dec 1998) |
| nucleotide | <biochemistry> Phosphate esters of nucleosides. The metabolic precursors of nucleic acids are monoesters with phosphate on carbon 5 of the pentose (known as 5' to distinguish sugar from base numbering). However many other structures, such as adenosine 3'5' cyclic monophosphate (cAMP) and molecules with 2 or 3 phosphates are also called nucleotides. (18 Nov 1997) |
| nucleotide 3'-pyrophosphokinase-2',3'-cyclic monophosphokinase | <enzyme> Transfers 5'-beta,gamma-pyrophosphate from ATP and some ATP derivatives to nucleotides and nucleosides at the 3'-hydroxyl group; synthesises the respective 3'-pyrophosphoryl nucleotides Registry number: EC 2.7.6.- Synonym: ppkase (26 Jun 1999) |
| 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) |
| nucleotides | The basic building blocks of nucleic acids. They are made up of a nitrogen-containing purine or pyrimidine base linked to a sugar (ribose or deoxyribose) and a phosphate group. (14 Nov 1997) |
| nucleotidyltransferases | <enzyme> A class of enzymes that transfers nucleotidyl residues. Registry number: EC 2.7.7 (12 Dec 1998) |
Synonyms : Dinucleosomes, Polynucleosomes, Dinucleosome, Nucleosome, Polynucleosome
Synonyms :
Synonyms : Deaminases, Nucleotide
Synonyms : Fingerprint, Nucleotide, Mapping, Nucleotide, Mappings, Nucleotide, Nucleotide Fingerprint, Nucleotide Fingerprints, Nucleotide Mappings
Synonyms : Nucleotide Translocase, Transport Proteins, Nucleotide
| nucleus pulposus |
Soft center of an intervertebral disc, made up of gel-like substance.
출처: www.ehealthmd.com/library/backpain/BAK_glossary.ht...
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| nuclear magnetic resonance |
A spectroscopic technique used to determine the 3-D structure of small- to medium-sized proteins. NMR is based on resonant absorption of electromagnetic radiation by the magnetic dipole moments of atomic nuclei in an applied magnetic field.
출처: www.genpromag.com/Glossary~LETTER~N.html
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| nuclear pore |
An opening in the nuclear envelope that joins the inner and outer nuclear membranes.
출처: www.genpromag.com/Glossary~LETTER~N.html
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| nuclei |
An organelle containing chromosomes that is the site of cellular DNA synthesis and RNA replication.
출처: www.genpromag.com/Glossary~LETTER~N.html
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| nuclide |
A single isotope.
출처: www.genpromag.com/Glossary~LETTER~N.html
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