- 商品介绍
- 规格参数
- 包装参数
General description
4-Hydroxyphenylpyruvate Dioxygenase (4-HPPD) is a key enzyme in the catabolism of tyrosine and phenylalanine. 4-HPPD catalyzes the synthesis of homogenistate (2,5-dihydroxyphenylacetate) from ρ-hydroxyphenylpyruvate and molecular oxygen. 4-HPPD also catalyzes the conversion of α-ketoisocaproate to Β-hydroxyisovalerate. 4-HPPD requires Fe2+ as an essential cofactor.
Rat 4-HPPD has a minimum of 80% homology with human 4-HPPD. Rat 4-HPPD is expressed abundantly in hepatocytes. It is also expressed in kidney, particularly in epithelial cells of the proximal tubules and the distant tubules. 4-HPPD has been identified as a potential biomarker of drug-induced liver injury in rat studies.
Other Notes
One unit will oxidize 1 μmole of molecular oxygen per minute at pH 7.0, 25 °C, in the presence of 4-hydroxyphenylpyruvate.
| recombinant | expressed in E. coli |
| Quality Level | 200 |
| form | liquid |
| specific activity | ≥5 U/mg |
| mol wt | ~41.8 kDa |
| shipped in | dry ice |
| storage temp. | −70°C |
| 长度(mm) | |
| 宽度(mm) | |
| 高度(mm) | |
| 重量(kg) |





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