Homologous Superfamily

PWI domain superfamily (IPR036483)

Short name: PWI_dom_sf

Overlapping entries


This entry represents the PWI domain superfamily.

The PWI domain, named after a highly conserved PWI tri-peptide located within its N-terminal region, is a ~80 amino acid module, which is found either at the N terminus or at the C terminus of eukaryotic proteins involved in pre-mRNA processing [PMID: 10322432]. It is generally found in association with other domains such as RRM and RS. The PWI domain is a RNA/DNA-binding domain that has an equal preference for single- and double-stranded nucleic acids and is likely to have multiple important functions in pre-mRNA processing [PMID: 12600940]. Proteins containing this domain include the SR-related nuclear matrix protein of 160kDa (SRm160) splicing and 3'-end cleavage-stimulatory factor, and the mammalian splicing factor PRP3.

The PWI domain is a soluble, globular and independently folded domain which consists of a four-helix bundle, with structured N- and C-terminal elements [PMID: 12600940].

GO terms

Biological Process

GO:0006397 mRNA processing

Molecular Function

No terms assigned in this category.

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.