活力：≥0.1 unit/mg HOLO enzyme dried cells
活力定义：One unit yields 1uM of CO2 from L-tyrosine per min at pH 5.5 at 37 °C 产品描述：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 apoezyme prepared from cells grown on a vitamin B6 deficient medium.Pyridoxal phosphate may be determined.The HOLO enzyme may be used to determine tyrosine.Phenylalanine and dihydroxyphenylalanine either manometrically or colorimetrically.
| 酪氨酸脱羧酶 | L-Tyrosine carboxy-lyase USP级 | 25U | ¥800 |
