CATH Classification

Domain Context

CATH Clusters

Superfamily Ricin (A subunit), domain 1
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 1MRI
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Studies on crystal structures, active-centre geometry and depurinating mechanism of two ribosome-inactivating proteins.
Huang, Q., Liu, S., Tang, Y., Jin, S., Wang, Y.
Biochem.J.