InnateDB: Systems Biology of the Innate Immune Response

Mus musculus Protein: Ern1

Summary

InnateDB Protein

IDBP-268005.6

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

Ern1

Protein Name

endoplasmic reticulum (ER) to nucleus signalling 1

Synonyms

9030414B18Rik; AI225830; C85377; Ire1a; Ire1alpha; Ire1p;

Species

Mus musculus

Ensembl Protein

ENSMUSP00000102413

InnateDB Gene

IDBG-213476 (Ern1)

Protein Structure

UniProt Annotation

Function

Senses unfolded proteins in the lumen of the endoplasmic reticulum via its N-terminal domain which leads to enzyme auto- activation. The active endoribonuclease domain splices XBP1 mRNA to generate a new C-terminus, converting it into a potent unfolded-protein response transcriptional activator and triggering growth arrest and apoptosis. {ECO:0000269PubMed:11850408}.

Subcellular Localization

Endoplasmic reticulum membrane {ECO:0000269PubMed:11850408}; Single-pass type I membrane protein {ECO:0000269PubMed:11850408}.

Disease Associations

Tissue Specificity

Ubiquitously expressed. High levels in thymus, liver and lung. In the brain, preferentially expressed in cortical, hippocampal and olfactory neurons. {ECO:0000269PubMed:11146108}.

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 5 experimentally validated interaction(s) in this database.
They are also associated with 15 interaction(s) predicted by orthology.

Experimentally validated
Total	5 [view]
Protein-Protein	5 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	15 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0000287	magnesium ion binding
GO:0004519	endonuclease activity
GO:0004521	endoribonuclease activity
GO:0004674	protein serine/threonine kinase activity
GO:0005515	protein binding
GO:0005524	ATP binding
GO:0042802	identical protein binding

Biological Process

GO:0006351	transcription, DNA-templated
GO:0006355	regulation of transcription, DNA-templated
GO:0006468	protein phosphorylation
GO:0006987	activation of signaling protein activity involved in unfolded protein response
GO:0007050	cell cycle arrest
GO:0030968	endoplasmic reticulum unfolded protein response
GO:0045087	innate immune response (InnateDB)
GO:0046777	protein autophosphorylation
GO:0070055	HAC1-type intron splice site recognition and cleavage
GO:0070059	intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress
GO:0090305	nucleic acid phosphodiester bond hydrolysis
GO:0090502	RNA phosphodiester bond hydrolysis, endonucleolytic
GO:1900103	positive regulation of endoplasmic reticulum unfolded protein response

Cellular Component

GO:0005637	nuclear inner membrane
GO:0005739	mitochondrion
GO:0005789	endoplasmic reticulum membrane
GO:0030176	integral component of endoplasmic reticulum membrane