EC Number   |
Activating Compound |
Reference |
|---|
   5.4.99.25 | aGar1 protein |
the aCbf5 alone can produce pseudouridine55 in tRNAs that contain the canonical 3-CCA sequence. This activity is stimulated by aGar1 |
706710 |
| 5.4.99.25 | aNop10 protein |
aCbf5 and aGar1 together can function as a tRNA pseudouridine55 synthase in a guide RNA-independent manner. This activity is enhanced by aNop10, but not by L7Ae |
706710 |
| 5.4.99.25 | more |
pfuCbf5 can modify tRNA uridine55, but not rRNA, in the absence of Gar1, Nop10 and L7Ae. The activity of pfuCbf5 toward tRNA uridine55 is enhanced in the presence of the accessory proteins, suggesting that a multi-protein Cbf5 complex may function in pseudouridine55 synthesis in Pyrococcus furiosus |
705958 |
| 5.4.99.25 | protein aGar1 |
aCbf5 alone can also produce Y55 in tRNAs that contain the canonical 3'-CCA sequence and this activity is stimulated by aGar1 |
706710 |
| 5.4.99.25 | protein aNOP10 |
aCbf5 and aGar1 together can function as a tRNA Y55 synthase in a guide RNA-independent manner. This activity is enhanced by aNop10, but not by L7Ae |
706710 |
| 5.4.99.25 | protein aNOP10 |
interaction with the pseudouridine synthase aCBF5 is required for the RNA-guided RNA:pseudouridine-synthase activity. The stable anchoring of aCBF5 to tRNAs relies on its PUA domain and the tRNA CCA sequence. Nonetheless, interaction of aNOP10 with aCBF5 can counterbalance the absence of the PUA domain or the CCA sequence and more generally helps the aCBF5 tRNA:pseudouridine55-synthase activity. Substitution of the aNOP10 residue Y14 by an alanine disturbs this activity, it only impairs mildly the RNA-guided activity. The opposite effect is observed for the aNOP10 variant H31A |
705960 |
