| sulfite reductases | <enzyme> Hydrogen sulfide:(acceptor) oxidoreductases. Enzymes which reversibly catalyze the oxidation of hydrogen sulfide in the presence of various acceptors to sulfite and a reduced acceptor. Utilises NADP+ as the acceptor. Utilises oxidised ferredoxin as acceptor and EC 1.8.99.1 will utilise a variety of acceptors. Registry number: EC 1.8.- (12 Dec 1998) |
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| sulfites | Inorganic salts of sulfurous acid. (12 Dec 1998) |
| sulfituria | Elevated levels of sulfites in the urine. (05 Mar 2000) |
| sulfmethemoglobin | The complex formed by H2S (or sulfides) and ferric ion in methemoglobin. Synonym: sulfhemoglobin. (05 Mar 2000) |
| sulfo- | See: sulf-. (05 Mar 2000) |
| sulfoacid | Synonym: thioacid. Synonym: sulfonic acid. (05 Mar 2000) |
| sulfoalanine decarboxylase | <enzyme> Cysteine-sulfinate decarboxylase II is an aspect of glutamate decarboxylase Registry number: EC 4.1.1.29 Synonym: cysteine sulfinate decarboxylase, csa decarboxylase, cysteine sulfinic acid decarboxylase, cysteinesulfinic acid decarboxylase, cysteinesulfinate decarboxylase, cysteine sulphinate decarboxylase, cysteine-sulfinate decarboxylase i (26 Jun 1999) |
| sulfobromophthalein | <chemical> A phenolphthalein that is used as a diagnostic aid in heptatic function determination. Pharmacological action: indicators and reagents, phthalein dyes. Chemical name: Benzenesulfonic acid, 3,3'-(4,5,6,7-tetrabromo-3-oxo-1(3H)-isobenzofuranylidene)bis(6-hydroxy-, disodium salt (12 Dec 1998) |
| sulfobromophthalein sodium | A triphenylmethane derivative excreted by the liver, used in testing hepatic function, particularly of the reticuloendothelial cells. Synonym: bromosulfophthalein, bromsulfophthalein. (05 Mar 2000) |
| sulfobromophthalein-glutathione conjugase | <enzyme> Similar to EC 2.5.1.18; non-microsomal enzyme involving transfer of the dye from plasma to hepatic parenchymal cells, cellular storage, enzymatic intracellular conjugation with reduced glutathione and rate limited excretion into the bile; activity of this enzyme is used to determine conjugating ability of the liver Registry number: EC 2.5.1.- Synonym: bromsulphthalein-glutathione conjugating enzyme (26 Jun 1999) |
| sulfocyanate | <chemistry> Same as Sulphocyanate. Source: Websters Dictionary (01 Mar 1998) |
| sulfocyanic acid | HS-CN;hydrogen thiocyanate. Synonym: rhodanic acid, sulfocyanic acid. (05 Mar 2000) |
| sulfogel | A hydrogel with sulfuric acid instead of water as the dispersion means. (05 Mar 2000) |
| sulfohydrate | A compound (hydrosulfide) containing the ion HS-. Synonym: sulfohydrate. (05 Mar 2000) |
| sulfokinase | Generic term for enzymes in EC sub-subclass 2.8.2 catalyzing the transfer of a sulfate group from 3'-phosphoadenylyl sulfate (active sulfate) to the hydroxyl group of an acceptor, producing the sulfated derivative and 3'-phosphoadenosine 5'-phosphate. Synonym: sulfikinase, sulfokinase. (05 Mar 2000) |