Activating Compound | Comment | Organism | Structure |
---|---|---|---|
aGar1 protein | the aCbf5 alone can produce pseudouridine55 in tRNAs that contain the canonical 3-CCA sequence. This activity is stimulated by aGar1 | Methanocaldococcus jannaschii | |
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 | Methanocaldococcus jannaschii | |
protein aGar1 | aCbf5 alone can also produce Y55 in tRNAs that contain the canonical 3'-CCA sequence and this activity is stimulated by aGar1 | Methanocaldococcus jannaschii | |
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 | Methanocaldococcus jannaschii |
Cloned (Comment) | Organism |
---|---|
- |
Methanocaldococcus jannaschii |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Methanocaldococcus jannaschii | - |
- |
- |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
tRNA uridine55 = tRNA pseudouridine55 | the mechanism of uridine55 recognition by Cbf5 and the bacterial TruB are different | Methanocaldococcus jannaschii |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
tRNA uridine55 | 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. The aCbf5 alone can also produce pseudouridine55 in tRNAs that contain the canonical 3-CCA sequence and this activity is stimulated by aGar1. The presence of C (or U) and A at tRNA position 56 and 58, respectively are not essential for Cbf5-mediated PSI55 formation. Variation in the structure of the anticodon arm of the tRNA does not affect the PSI55 synthase activity | Methanocaldococcus jannaschii | tRNA pseudouridine55 | - |
? | |
tRNATrp uridine55 | tRNATrp containing or lacking 3'-CCA. aCbf5 and aGar1 together can function as a tRNA Psi55 synthase in a guide RNA-independent manner. This activity is enhanced by aNop10, but not by L7Ae. The aCbf5 alone can also produce Psi55 in tRNAs that contain the canonical 3'-CCA sequence and this activity is stimulated by aGar1. tRNAs lacking 3'-CCA can be modified only by the aCbf5-aGar1 complex. The presence of conserved C (or U) and A at tRNA positions 56 and 58, respectively, is not essential for aCbf5-mediated Psi55 formation | Methanocaldococcus jannaschii | tRNATrp pseudouridine55 | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
68 | - |
assay at | Methanocaldococcus jannaschii |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7 | - |
assay at | Methanocaldococcus jannaschii |