Tryptophanase
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Tryptophanase is a zymogen-converting enzyme and inducible enzyme that can convert its inactive precursor form into an active enzyme without additional polypeptide synthesis. In Escherichia coli K12, tryptophanase functions as an inducible enzyme, and its induction kinetics are similar to those of β-galactosidase. Tryptophanase catalyzes the conversion of L-tryptophan to indole.
For research use only. We do not sell to patients.
- CAS No.: 9024-00-4
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Tryptophanase (1.5 × 10-3 M L-tryptophan inducer; 100 μg/mL chloramphenicol; multiple time points) induction in Escherichia coli K12 strain C600 (F-) has a 3-4 min lag phase post-inducer addition, with de novo synthesis capacity decaying with a half-life of 2.5 min after inducer removal; in phage-infected F- cells, this half-life is 1.5 min, while in F+ cells it remains 2.5 min. A tryptophanase precursor accumulates starting 1-1.5 min post-induction, with conversion to active enzyme requiring 1-2 min[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 9024-00-4
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Appearance Solid
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Color White to off-white
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SMILES
[Tryptophanase]
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
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Data Sheet (265 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)