| B1 | induced field in magnetic resonance imaging; radiofrequency magnetic field in nuclear magnetic reson... |
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| TDS | temperature, depth, salinity; thiamine disulfide; transduodenal sphincteroplasty |
| Thi | thiamine |
| THPP | thiamine pyrophosphate; trihydroxy propriophenone |
| ThPP | thiamine pyrophosphate |
| hexose monophosphate pathway | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
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| hexose monophosphate shunt | The main metabolic pathway in activated neutrophils, rendering them relatively insensitive to inhibitors of oxidative phosphorylation. Congenital deficiency of the first enzyme in the shunt, glucose 6 phosphate dehydrogenase, produces a sensitivity to infection similar to that seen in chronic granulomatous disease. (18 Nov 1997) |
| nucleoside-monophosphate | A nucleotide, e.g., AMP. (05 Mar 2000) |
| deoxycytidine monophosphate | <chemical> Deoxycytidine (dihydrogen phosphate). A deoxycytosine nucleotide containing one phosphate group esterified to the deoxyribose moiety in the 2'-,3'- or 5- positions. Chemical name: 5'-Cytidylic acid, 2'-deoxy- (12 Dec 1998) |
| dolichol monophosphate mannose | <chemical> A lipophilic glycosyl carrier of the monosaccharide mannose in the biosynthesis of oligosaccharide phospholipids and glycoproteins. Chemical name: beta-D-Mannopyranose, 1-ester with dolichol dihydrogen phosphate (12 Dec 1998) |
| inosine monophosphate | <chemical> Inosine 5'-monophosphate. A purine nucleotide which has hypoxanthine as the base and one phosphate group esterified to the sugar moiety. Chemical name: 5'-Inosinic acid (12 Dec 1998) |
| orotidine 5'-monophosphate | Orotidine 5'-monophosphate;an intermediate in the biosynthesis of the pyrimidine nucleosides (cytidine and uridine) that are found in nucleic acids. Synonym: orotidine 5'-monophosphate. (05 Mar 2000) |
| terpenyl monophosphate hydrolase | <enzyme> Hydrolyzes bornyl phosphate to borneol Registry number: EC 3.1.3.- (26 Jun 1999) |
| thymidine 5'-monophosphate | A major constituent of DNA. Synonym: thymidine 5'-monophosphate, thymine nucleotide. (05 Mar 2000) |
| thymidine monophosphate | <chemical> 5-thymidylic acid. A thymine nucleotide containing one phosphate group esterified to the deoxyribose moiety. Chemical name: 5'-Thymidylic acid (12 Dec 1998) |
| uridine 5'-monophosphate | Uridine esterified by phosphoric acid on one or more sugar hydroxyl groups; UMP is typically uridine 5'-monophosphate; 2' and 3' derivatives also occur; precursor for the biosynthesis of other pyrimidine nucleotides. Synonym: UMP synthase, uridine 5'-monophosphate. Uridylic acid synthase, a bifunctional enzyme that contains the activities of both orotate phosphoribosyltransferase and orotidine-5'-monophosphate decarboxylase; catalyses a key step in pyrimidine biosynthesis; a deficiency of this enzyme leads to orotic aciduria. (05 Mar 2000) |
| uridine 5'-monophosphate synthase | <chemical> Consists of orotate phosphoribosyltransferase EC 2.4.2.10 and orotidylate decarboxylase EC 4.1.1.23 Chemical name: synthase, uridylate Synonym: ump synthase, uridine 5'-phosphate synthase, uridylate synthase (26 Jun 1999) |
| uridine monophosphate | <chemical> 5'-uridylic acid. A uracil nucleotide containing one phosphate group esterified to the sugar moiety in the 2', 3' or 5' position. Chemical name: 5'-Uridylic acid (12 Dec 1998) |
| uridine monophosphate kinase | <enzyme> Catalyses the phosphorylation of ump to udp; an aspect of EC 2.7.4.4 Registry number: EC 2.7.4.- Synonym: ump kinase, uridine-5-monophosphate kinase, uridylate kinase (26 Jun 1999) |
| 5-methyldeoxycytidine monophosphate aminohydrolase | <enzyme> Forms thymidylate; does not act on dcmp Registry number: EC 3.5.4.- Synonym: 5mdcmp aminohydrolase (26 Jun 1999) |