Entrez Summary: This gene belongs to the splicing factor SR family of genes. U2 auxiliary factor, comprising a large and a small subunit, is a non-snRNP protein required for the binding of U2 snRNP to the pre-mRNA branch site. This gene encodes the small subunit which plays a critical role in both constitutive and enhancer-dependent RNA splicing by directly mediating interactions between the large subunit and proteins bound to the enhancers. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008].
UniProt Summary: Plays a critical role in both constitutive and enhancer- dependent splicing by mediating protein-protein interactions and protein-RNA interactions required for accurate 3'-splice site selection. Recruits U2 snRNP to the branch point. Directly mediates interactions between U2AF2 and proteins bound to the enhancers and thus may function as a bridge between U2AF2 and the enhancer complex to recruit it to the adjacent intron. {ECO:0000269|PubMed:22158538, ECO:0000269|PubMed:25311244, ECO:0000269|PubMed:8647433}.
Pfam DomainsGO Terms
Pfam Domains
RRM 1
zf-CCCH
GO Terms
U2AF
pre-mRNA 3-splice site binding
Cajal body
mRNA 3-end processing
catalytic step 2 spliceosome
spliceosomal complex
mRNA-containing ribonucleoprotein complex export from nucleus
mRNA export from nucleus
ribonucleoprotein complex export from nucleus
ribonucleoprotein complex localization
RNA export from nucleus
RNA 3-end processing
protein export from nucleus
mRNA transport
nuclear export
RNA transport
nucleic acid transport
establishment of RNA localization
RNA localization
nucleobase-containing compound transport
protein-containing complex localization
nucleocytoplasmic transport
nuclear transport
RNA splicing, via transesterification reactions with bulged adenosine as nucleophile
mRNA splicing, via spliceosome
RNA splicing, via transesterification reactions
RNA splicing
nuclear speck
mRNA processing
mRNA metabolic process
RNA processing
intracellular protein transport
RNA binding
protein transport
intracellular transport
peptide transport
amide transport
cellular protein localization
cellular macromolecule localization
establishment of protein localization
RNA metabolic process
establishment of localization in cell
nitrogen compound transport
gene expression
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)