RRNA N-glycosylase
Appearance
rRNA N-glycosylase | |||||||||
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![]() Ricin A chain, Ricinus communis | |||||||||
Identifiers | |||||||||
EC no. | 3.2.2.22 | ||||||||
CAS no. | 113756-12-0 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
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rRNA N-glycosylase (EC 3.2.2.22, ribosomal ribonucleate N-glycosidase, nigrin b, RNA N-glycosidase, rRNA N-glycosidase, ricin, momorcochin-S, Mirabilis antiviral protein, gelonin, saporins) is an enzyme with systematic name rRNA N-glycohydrolase.[1] This enzyme catalyses the following chemical reaction
- Hydrolysis of the N-glycosylic bond at A-4324 in 28S rRNA from eukaryotic ribosomes.
Ricin A-chain and related toxins show this activity. The only protein family known to have this activity is the ribosome-inactivating protein (RIP) family.
References
[edit]External links
[edit]- RRNA+N-glycosylase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)