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Comparison of Apparent Affinities and Maximal Catalytic Activities of Arabidopsis URH1 Expressed in Yeast or E. coli
| Substrate/Expression System | Km (mM) | Vmax (mmol h−1 mg−1 Protein) |
|---|---|---|
| Uridine yeast | 2.1 | 0.030 |
| Uridine E. coli | 0.8 | 18.281 |
| Inosine E. coli | 1.4 | 0.869 |
| Adenosine E. coli | 0.7 | 0.028 |
| IPR E. coli | 0.4 | 0.005 |
