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 1F8Q
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of alpha-momorcharin in 80% acetonitrile--water mixture
Zhu, G., Huang, Q., Qian, M., Tang, Y.
BIOCHIM.BIOPHYS.ACTA
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