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 Q7DI68
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 (2)

Q7DJJ2
Q7DJJ2_ECOLX
Escherichia coli
Shiga toxin 2 B subunit
Q7DI68
Q7DI68_ECO57
Escherichia coli O157:H7
Shiga toxin 2 A-subunit

PDB Structure

PDB 4M1U
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The crystal structure of shiga toxin type 2 with bound disaccharide guides the design of a heterobifunctional toxin inhibitor.
Jacobson, J.M., Yin, J., Kitov, P.I., Mulvey, G., Griener, T.P., James, M.N., Armstrong, G., Bundle, D.R.
J.Biol.Chem.