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 P16094
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)

P16094
RIP1_MOMCH
Momordica charantia
Ribosome-inactivating protein momordin I

PDB Structure

PDB 1AHC
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The N-glycosidase mechanism of ribosome-inactivating proteins implied by crystal structures of alpha-momorcharin.
Ren, J., Wang, Y., Dong, Y., Stuart, D.I.
Structure