CATH Classification

Domain Context

CATH Clusters

Superfamily Pseudouridine synthase
Functional Family tRNA pseudouridine synthase B

Enzyme Information

5.4.99.25
tRNA pseudouridine(55) synthase.
based on mapping to UniProt Q9WZW0
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)

Q9WZW0
TRUB_THEMA
Thermotoga maritima MSB8
TRNA pseudouridine synthase B

PDB Structure

PDB 2AB4
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Dissecting the roles of a strictly conserved tyrosine in substrate recognition and catalysis by pseudouridine 55 synthase.
Phannachet, K., Elias, Y., Huang, R.H.
Biochemistry
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