RNA recognition motif domain, eukaryote (IPR003954)

Short name: RRM_dom_euk

Overlapping homologous superfamilies

Domain relationships


Many eukaryotic proteins that are known or supposed to bind single-stranded RNA contain one or more copies of a putative RNA-binding domain of about 90 amino acids. This is known as the eukaryotic putative RNA-binding region RNP-1 signature [PMID: 2470643, PMID: 3072706], or RNA recognition motif (RRM). RRMs are found in a variety of RNA binding proteins, including heterogeneous nuclear ribonucleoproteins (hnRNPs), proteins implicated in regulation of alternative splicing, and protein components of small nuclear ribonucleoproteins (snRNPs). The motif also appears in a few single stranded DNA binding proteins. The RRM structure consists of four strands and two helices arranged in an alpha/beta sandwich, with a third helix present during RNA binding in some cases [PMID: 8290338]. Two individual SMART models were built which identify subtypes of this domain, and are found exclusively in eukaryotes.

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0003676 nucleic acid binding

Cellular Component

No terms assigned in this category.

Contributing signatures

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