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活力：≥0.1 unit/mg

活力定義：One unit yields 1uM of CO2 from L-tyrosine per min at pH 5.5 at 37 °C。

來源：Streptococcus faecalis (NCTC6783)

性狀：粉末。

儲(chǔ)存條件：-20°C

用途：生化試劑

Tyrosine decarboxylase catalyzes the removal of the carboxyl group from tyrosine to produce tyramine and carbon dioxide. Pyridoxal 5'-phosphate is a necessary cofactor. By using the apoenzyme prepared from cells grown on a vitamin B6 deficient medium pyridoxal phosphate may be determined. The HOLOenzyme may be used to determine tyrosine, phenylalanine and dihydroxyphenylalanine either manometrically or colorimetrically.

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