CATH Classification

Domain Context

CATH Clusters

Superfamily Vaccinia Virus protein VP39
Functional Family tRNA(Phe) (4-demethylwyosine(37)-C(7)) aminocarboxypropyltransferase

Enzyme Information

2.5.1.114
tRNA(Phe) (4-demethylwyosine(37)-C(7)) aminocarboxypropyltransferase.
based on mapping to UniProt O58523
S-adenosyl-L-methionine + 4-demethylwyosine(37) in tRNA(Phe) = S-methyl- 5'-thioadenosine + 7-((3S)-3-amino-3-carboxypropyl)-4-demethylwyosine(37) in tRNA(Phe).
-!- The enzyme, which is found in all eukaryotes and in the majority of Euryarchaeota (but not in the Crenarchaeota), is involved in the hypermodification of the guanine nucleoside at position 37 of tRNA leading to formation of assorted wye bases. -!- This modification is essential for translational reading-frame maintenance. -!- The eukaryotic enzyme is involved in biosynthesis of the tricyclic base wybutosine, which is found only in tRNA(Phe).

UniProtKB Entries (1)

O58523
TYW2_PYRHO
Pyrococcus horikoshii OT3
TRNA(Phe) (4-demethylwyosine(37)-C(7)) aminocarboxypropyltransferase

PDB Structure

PDB 3A25
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural basis of AdoMet-dependent aminocarboxypropyl transfer reaction catalyzed by tRNA-wybutosine synthesizing enzyme, TYW2
Umitsu, M., Nishimasu, H., Noma, A., Suzuki, T., Ishitani, R., Nureki, O.
Proc.Natl.Acad.Sci.USA