Homo sapiens Protein: WIBG
Summary
InnateDB Protein IDBP-295444.5
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol WIBG
Protein Name within bgcn homolog (Drosophila)
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000386156
InnateDB Gene IDBG-39367 (WIBG)
Protein Structure
UniProt Annotation
Function Key regulator of the exon junction complex (EJC), a multiprotein complex that associates immediately upstream of the exon-exon junction on mRNAs and serves as a positional landmarks for the intron exon structure of genes and directs post- transcriptional processes in the cytoplasm such as mRNA export, nonsense-mediated mRNA decay (NMD) or translation. Acts as a EJC disassembly factor, allowing translation-dependent EJC removal and recycling by disrupting mature EJC from spliced mRNAs. Its association with the 40S ribosomal subunit probably prevents a translation-independent disassembly of the EJC from spliced mRNAs, by restricting its activity to mRNAs that have been translated. Interferes with NMD and enhances translation of spliced mRNAs, probably by antagonizing EJC functions. May bind RNA; the relevance of RNA-binding remains unclear in vivo, RNA-binding was detected by PubMed:14968132, while PubMed:19410547 did not detect RNA-binding activity independently of the EJC. {ECO:0000269PubMed:18026120, ECO:0000269PubMed:19410547}.
Subcellular Localization Cytoplasm. Nucleus, nucleolus. Nucleus, nucleoplasm. Note=Shuttles between the nucleus and the cytoplasm. Nuclear export is mediated by XPO1/CRM1.
Disease Associations
Tissue Specificity
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 56 experimentally validated interaction(s) in this database.
Experimentally validated
Total 56 [view]
Protein-Protein 56 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0005515 protein binding
GO:0043022 ribosome binding
GO:0044822 poly(A) RNA binding
Biological Process
GO:0000184 nuclear-transcribed mRNA catabolic process, nonsense-mediated decay
GO:0045727 positive regulation of translation
Cellular Component
GO:0005654 nucleoplasm
GO:0005730 nucleolus
GO:0005737 cytoplasm
GO:0035145 exon-exon junction complex
Protein Structure and Domains
PDB ID
InterPro IPR015362 Exon junction complex, Pym
PFAM PF09282
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9BRP8
PhosphoSite PhosphoSite-Q9BRP8
TrEMBL
UniProt Splice Variant
Entrez Gene 84305
UniGene Hs.505687
RefSeq NP_115721
HUGO HGNC:30258
OMIM
CCDS CCDS41795
HPRD 17940
IMGT
EMBL AC023055 AC025162 AJ459406 AK096922 BC006135 BC014976
GenPept AAH06135 AAH14976 BAC04897 CAD30677