Ribosome inactivating protein

Revision as of 11:29, 8 July 2015 by Michal Harel (talk | contribs)

Ribosome inactivating protein (RIP) is a bacterial or plant toxin which inhibits protein synthesis. RIP inactivates the ribosomal 60S subunit by N-glycosidic cleavage which results in releasing a specific adenine from 28S rRNA. Type 1 RIP has a single chain, while type 2 RIP has two chains. Enhanced expression of RIP in plants confers an increased resistance to virus, fungi, insects, drought and salinity.

Function

Disease

Relevance

RIP is being investigated as an immunotoxin for cancer treatment. Besides the anti-tumor activity of RIP, it was shown to have antiviral, antifungal, insecticidal, ribonuclease and deoxyribonuclease activities.

Structural highlights

Glycosylated type 1 ribosome inactivating protein from bitter gourd complex with adenine and glycerol (PDB code 3u70)

Drag the structure with the mouse to rotate

3D Structures of ribosome inactivating protein3D Structures of ribosome inactivating protein

Updated on 08-July-2015

ReferencesReferences

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman