| transulfurase | Descriptive term applied to the enzymes catalyzing, among others, the following reactions involving sulfur-containing compounds: 1) cystathionine → cysteine + alpha-ketobutyrate + NH3 (cystathionine gamma-lyase); 2) cystathionine → homocysteine + pyruvate + NH3 (cystathionine beta-lyase); 3) cystine → thiocysteine + pyruvate + NH3 (cystathionine gamma-lyase); 4) cystathionine → serine + homocysteine (cystathionine synthase). Synonym: transulfurase. (05 Mar 2000) |
|---|