CATH Classification

Domain Context

CATH Clusters

Superfamily Ricin (A Subunit), domain 2
Functional Family

Enzyme Information

3.2.2.22
rRNA N-glycosylase.
based on mapping to UniProt P09989
Endohydrolysis of the N-glycosidic bond at one specific adenosine on the 28S rRNA.
-!- Ricin A-chain and related toxins show this activity. -!- Naked rRNA is attacked more slowly than rRNA in intact ribosomes. -!- Naked rRNA from Escherichia coli is cleaved at a corresponding position.

UniProtKB Entries (1)

P09989
RIPT_TRIKI
Trichosanthes kirilowii
Ribosome-inactivating protein alpha-trichosanthin

PDB Structure

PDB 1QD2
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structures of the complexes of trichosanthin with four substrate analogs and catalytic mechanism of RNA N-glycosidase.
Gu, Y.J., Xia, Z.X.
Proteins