CATH Classification

Domain Context

CATH Clusters

Superfamily PUA domain
Functional Family Probable tRNA pseudouridine synthase B

Enzyme Information

5.4.99.25
tRNA pseudouridine(55) synthase.
based on mapping to UniProt Q7LWY0
tRNA uridine(55) = tRNA pseudouridine(55).
-!- Pseudourine synthase TruB from Escherichia coli specifically modifies uridine(55) in tRNA molecules. -!- The bifunctional archaeal enzyme also catalyzes the pseudouridylation of uridine(54). -!- It is not known whether the enzyme from Escherichia coli can also act on position 54 in vitro, since this position is occupied in E.coli tRNAs by thymine.

UniProtKB Entries (1)

Q8U160
RL7A_PYRFU
Pyrococcus furiosus DSM 3638
50S ribosomal protein L7Ae

PDB Structure

PDB 2HVY
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal structure of an H/ACA box ribonucleoprotein particle
Li, L., Ye, K.
Nature