Apotryptophanase from Escherichia coli, soluble powder, 75-150 units/mg solid

Apotryptophanase from Escherichia coli, soluble powder, 75-150 units/mg solid

Stock Code: 3578983
Manufacturer Part No: A6007-25MG
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£915.11 (exc VAT) per 25MG
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Application


Apotryptophanase is used for the quantitative determination of pyridoxal-phosphate. Apotryptophanase, from Sigma, has been used to study pregnancy-associated PLP deficiency and vitamin B-6 deficiency .


Biochem/physiol Actions


Apotryptophanase hydrolizes tryptophan and is capable of catalyzing ?,?-elimination reactions with a number of substituted amino acids, including S-methyl-, S-ethyl- and S-benzyl- L-cysteine. DTNB inactivates tryptophanase .


Packaging


25 mg in poly bottle


Unit Definition


One unit releases one µg of indole from L-tryptophan in 10 min at pH 8.3 at 37 °C in the presence of 0.04 mM pyridoxal-5′--phosphate.

Quality Level200
ManufacturerSIGMA-ALDRICH
Storage Temp.−20°C
Formsoluble powder

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