产品名称

Apotryptophanase from Escherichia coli

别 称

L-Tryptophan indole-lyase (deaminating), Tryptophanase from Escherichia coli

含 量

75-150units/mg solid

CAS  NO.

9024-00-4

MDL  number

MFCD00130539

适用范围

生物试剂

l  理化信息

外 观

白色至浅黄色可溶性粉末

溶解性(25°C)

Water: 0.90 - 1.10mg/ml; Clear to Slightly Hazy; Colorless to Light Yellow

l  生物学信息

生物活性/药理作用

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

应 用

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

有效单位定义

One unit releases one μg of indole from L-tryptophan in 10min at pH8.3 at 37°C in the presence of 0.04 mM pyridoxal-5′--phosphate.

l  存储

存储温度

-20°C

l  注意事项及免责声明

本产品仅用于实验研究，不得作为药物使用，不得用于家用或其它用途。

l  参考文献

1.    http://www.drugbank.ca

2.    https://ncit.nci.nih.gov

3.    https://www.ncbi.nlm.nih.gov