| desulfhydrases | Enzymes or groups of enzymes catalyzing the removal of a molecule of H2S or substituted H2S from a compound, as in the conversion of cysteine to pyruvic acid by cysteine desulfhydrase (cystathionine gamma-lyase). Synonym: desulfurases. (05 Mar 2000) |
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| cysteine desulfhydrase | <enzyme> A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyses the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. Chemical name: L-Cystathionine cysteine-lyase (deaminating) Registry number: EC 4.4.1.1 (12 Dec 1998) |
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| cystine desulfhydrase | <enzyme> A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyses the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. Chemical name: L-Cystathionine cysteine-lyase (deaminating) Registry number: EC 4.4.1.1 (12 Dec 1998) |
| homocysteine desulfhydrase | <enzyme> Catalyses the breakdown of homocysteine to hydrogen sulfide, ammonia and 2-oxobutanoate Registry number: EC 4.4.1.2 Synonym: homocysteine desulfurase, homocysteine desulphurase (26 Jun 1999) |
| desulfhydrase |
An enzyme that cleaves cysteine into hydrogen sulfide, ammonia, and pyruvic acid.
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