CATH Domain 2r3dA02

CATH Classification

Level	CATH Code	Description
	4	Few Secondary Structures
	4.10	Irregular
	4.10.470	Ricin (A Subunit), domain 2
	4.10.470.10	Ricin (A Subunit), domain 2

Domain Context

CATH Clusters

Superfamily	Ricin (A Subunit), domain 2
Functional Family	Ricin

Enzyme Information

3.2.2.22

rRNA N-glycosylase.

based on mapping to UniProt P02879

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)

P02879

RICI_RICCO

Ricinus communis

Ricin

PDB Structure

PDB	2R3D
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism	Escherichia
Primary Citation	Fragment-based identification of determinants of conformational and spectroscopic change at the ricin active site Carra, J.H., McHugh, C.A., Mulligan, S., Machiesky, L.M., Soares, A.S., Millard, C.B. BMC Struct.Biol.