Rotavirus non-structural protein 5 (NSP5) (NSP5)

Rotavirus non-structural protein 5 (NSP5) is a critical 22-kDa phosphoprotein encoded by the eleventh genomic segment of the Rotavirus genome (UniProt: P0C0M5). It serves as a primary scaffold for the formation of viroplasms, which are specialized cytoplasmic inclusions where viral RNA replication and early particle assembly occur (PubMed: 11832469). NSP5 undergoes a complex process of hyperphosphorylation that is essential for its function, a process triggered and regulated by its interaction with the viral protein NSP2 (PubMed: 15140983). As Rotavirus remains a leading cause of severe, dehydrating diarrhea and gastroenteritis in infants worldwide, NSP5 represents a vital target for the development of novel antiviral therapies (NIH: Rotavirus). Current research into targeting NSP5 involves the use of small molecule inhibitors and RNA interference to disrupt viroplasm assembly or inhibit the phosphorylation cascade necessary for viral propagation (PubMed: 22496221).

Other names

Non-structural protein 5Gene 11 proteinPhosphoprotein NSP5NSP5

Disruption of viroplasm assembly and inhibition of viral RNA replication by interfering with NSP5 phosphorylation or its interaction with NSP2 (PubMed: 22496221).