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 P25891
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)

P25891
RIP3_MAIZE
Zea mays
Ribosome-inactivating protein 3

PDB Structure

PDB 2PQJ
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Structure-function study of maize ribosome-inactivating protein: implications for the internal inactivation region and the sole glutamate in the active site.
Mak, A.N., Wong, Y.T., An, Y.J., Cha, S.S., Sze, K.H., Au, S.W., Wong, K.B., Shaw, P.C.
Nucleic Acids Res.