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NAD(P)H + H+ + oxygen + tryptamine ↔ H2 + serotonin + NAD(P)+ (R5275)
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H+ + L-tryptophan → tryptamine + CO2 (R2731)
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5-hydroxy-L-tryptophan + H+ → serotonin + CO2 (R2732)
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L-tryptophan + H+ ↔ L-tryptophan + H+ (R00786)
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H2O + L-tryptophan → pyruvate + ammonium + indole (R2069)
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D-erythrose 4-phosphate + phosphoenolpyruvate + H2O ↔ 3-deoxy-D-arabino-heptulosonate 7-phosphate + phosphate (R576)
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NAD+ + 3-phospho-D-glycerate ↔ 3-phosphooxypyruvate + NADH + H+ (R51)
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L-glutamine + chorismate ↔ anthranilate + pyruvate + H+ + L-glutamate (R10)
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Feedback insensitive
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Overexpression
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N-(5-phosphoribosyl)-anthranilate + diphosphate ↔ anthranilate + 5-phospho-α-D-ribose 1-diphosphate (R423)
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1-(o-carboxyphenylamino)-1'-deoxyribulose 5'-phosphate + H+ → H2O + (1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate + CO2 (R600)
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N-(5-phosphoribosyl)-anthranilate → 1-(o-carboxyphenylamino)-1'-deoxyribulose 5'-phosphate (R562)
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L-serine + indole → H2O + L-tryptophan (R747)
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(1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate ↔ D-glyceraldehyde 3-phosphate + indole (R503)
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(6R)-4a-hydroxy-tetrahydrobiopterin → H2O + L-erythro-7,8-dihydrobiopterin (R7384)
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NAD+ + (6R)-L-erythro-5,6,7,8-tetrahydrobiopterin ← L-erythro-7,8-dihydrobiopterin + NADH + H+ (R5974)
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(6R)-L-erythro-5,6,7,8-tetrahydrobiopterin + L-tryptophan + oxygen → 5-hydroxy-L-tryptophan + (6R)-4a-hydroxy-tetrahydrobiopterin (R10224)