| thioethanolamine acetyltransferase | <enzyme> An enzyme transferring acetyl from acetyl-CoA to the sulfur atom of thioethanolamine, thus producing coenzyme A and S-acetylthioethanolamine. Synonym: thiotransacetylase B. (05 Mar 2000) |
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| thioether | The bond R s C, of which the best example is methionine. (18 Nov 1997) |
| thioflavin T | A yellow thiazole dye, C17H19N2SCl, used in histopathology as a fluorochrome for hyaline and amyloid. (05 Mar 2000) |
| thioflavine S | A methylated and sulfonated derivative of primulin; a yellowish dye used in fluorescence microscopy as a vital stain. (05 Mar 2000) |
| thioflavine T stain | <technique> A stain employed to detect amyloid, which induces specific yellow fluorescence; tissue sections are first put in alum-haematoxylin to quench nuclear fluorescence and then stained in thioflavine T. (05 Mar 2000) |
| thiofuran | <chemistry> A sulphur hydrocarbon, C4H4S, analogous to furfuran and benzene, and acting as the base of a large number of substances which closely resemble the corresponding aromatic derivatives. Origin: Thio- + phenyl + -ene. Source: Websters Dictionary (01 Mar 1998) |
| thiogalactosides | Galactosides in which the oxygen atom linking the sugar and aglycone is replaced by a sulfur atom. (12 Dec 1998) |
| thioglucosidase | <enzyme> An enzyme in mustard seed that converts thioglycosides into thiols plus sugars. Synonym: myrosinase, sinigrase, sinigrinase. (05 Mar 2000) |
| thioglycerol | Alpha-Monothioglycerol; 3-mercapto-1,2-propanediol;used to promote wound healing. Synonym: thioglycerol. (05 Mar 2000) |
| thioglycolate | Thioglycollate A salt or ester of thioglycolic acid; frequently used in bacterial media to reduce their oxygen content so as to create favourable conditions for the growth of anaerobes; the thioglycolate will also inactivate any mercurial that might be carried over with the inoculum. (05 Mar 2000) |
| thioglycolates | Organic esters of thioglycolic acid (hs-ch2cooh). (12 Dec 1998) |
| thioglycolic acid | HSCH2COOH;used as a reagent for the detection of metals such as iron, molybdenum, silver, and tin; the ammonium and sodium salts are used in home permanents, the calcium salt as a depilatory. Synonym: mercaptoacetic acid. (05 Mar 2000) |
| thioguanine | <chemical> 2-amino-1,7-dihydro-6h-purine-6-thione. An antineoplastic compound which also has antimetabolite action. The drug is used in the therapy of acute leukaemia. Pharmacological action: antimetabolites, antineoplastic. Chemical name: 6H-Purine-6-thione, 2-amino-1,7-dihydro- (12 Dec 1998) |
| thioinosine | <chemical> 9-beta-d-ribofuranosyl-9h-purine-6-thiol. Sulfhydryl analog of inosine that inhibits nucleoside transport across erythrocyte plasma membranes, and has immunosuppressive properties. It has been used similarly to mercaptopurine in the treatment of leukaemia. Pharmacological action: antimetabolites, antimetabolites, antineoplastic, immunosuppressive agents. Chemical name: Inosine, 6-thio- (12 Dec 1998) |
| thiokinase | Group term for enzymes that form acyl-CoA compounds from the corresponding fatty acids and CoA; the bond is through the sulfur atom of the CoA. (05 Mar 2000) |