| tryptophan synthase | <enzyme> An enzyme that catalyses the conversion of l-serine and 1-(indol-3-yl)glycerol 3-phosphate to l-tryptophan and glyceraldehyde 3-phosphate. It is a pyridoxal phosphate protein that also catalyses the conversion of serine and indole into tryptophan and water and of indoleglycerol phosphate into indole and glyceraldehyde phosphate. Chemical name: L-Serine hydro-lyase (adding indoleglycerol-phosphate) Registry number: EC 4.2.1.20 (12 Dec 1998) |
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| tryptophan synthetase | <enzyme> An enzyme that catalyses the conversion of l-serine and 1-(indol-3-yl)glycerol 3-phosphate to l-tryptophan and glyceraldehyde 3-phosphate. It is a pyridoxal phosphate protein that also catalyses the conversion of serine and indole into tryptophan and water and of indoleglycerol phosphate into indole and glyceraldehyde phosphate. Chemical name: L-Serine hydro-lyase (adding indoleglycerol-phosphate) Registry number: EC 4.2.1.20 (12 Dec 1998) |
| tryptophan-trna ligase | <enzyme> An enzyme that activates tryptophan with its specific transfer RNA. Chemical name: L-Tryptophan:tRNA(Trp) ligase (AMP-forming) Registry number: EC 6.1.1.2 (12 Dec 1998) |
| tryptophanase | <enzyme> An enzyme that catalyses the conversion of l-tryptophan and water to indole, pyruvate, and ammonia. It is a pyridoxal-phosphate protein, requiring k+. It also catalyses 2,3-elimination and beta-replacement reactions of some indole-substituted tryptophan analogs of l-cysteine, l-serine, and other 3-substituted amino acids. Chemical name: L-Tryptophan indole-lyase (deaminating) Registry number: EC 4.1.99.1 (12 Dec 1998) |
| tryptophanuria | Enhanced urinary excretion of tryptophan. Tryptophanuria with dwarfism, a syndrome of dwarfism, mental defect, cutaneous photosensitivity, and gait disturbance associated with tryptophanuria; autosomal recessive inheritance. (05 Mar 2000) |