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Mouse Ern1 Antibody (C-term) Blocking Peptide
Synthetic peptide
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
| Primary Accession | Q9EQY0 |
|---|---|
| Clone Names | 110316157 |
| Gene ID | 78943 |
|---|---|
| Other Names | Serine/threonine-protein kinase/endoribonuclease IRE1, Endoplasmic reticulum-to-nucleus signaling 1, Inositol-requiring protein 1, Ire1-alpha, IRE1a, Serine/threonine-protein kinase, Endoribonuclease, 3126-, Ern1 {ECO:0000312|MGI:MGI:1930134} |
| Format | Peptides are lyophilized in a solid powder format. Peptides can be reconstituted in solution using the appropriate buffer as needed. |
| Storage | Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C. |
| Precautions | This product is for research use only. Not for use in diagnostic or therapeutic procedures. |
| Name | Ern1 {ECO:0000312|MGI:MGI:1930134} |
|---|---|
| Function | Serine/threonine-protein kinase and endoribonuclease that acts as a key sensor for the endoplasmic reticulum unfolded protein response (UPR) (PubMed:11850408, PubMed:25164867). In unstressed cells, the endoplasmic reticulum luminal domain is maintained in its inactive monomeric state by binding to the endoplasmic reticulum chaperone HSPA5/BiP. Accumulation of misfolded protein in the endoplasmic reticulum causes release of HSPA5/BiP, allowing the luminal domain to homodimerize, promoting autophosphorylation of the kinase domain and subsequent activation of the endoribonuclease activity (PubMed:25164867). The endoribonuclease activity is specific for XBP1 mRNA and excises 26 nucleotides from XBP1 mRNA (PubMed:11850408, PubMed:25164867). The resulting spliced transcript of XBP1 encodes a transcriptional activator protein that up-regulates expression of UPR target genes (PubMed:11850408, PubMed:25164867). Acts as an upstream signal for ER stress-induced GORASP2-mediated unconventional (ER/Golgi- independent) trafficking of CFTR to cell membrane by modulating the expression and localization of SEC16A (By similarity). |
| Cellular Location | Endoplasmic reticulum membrane; Single-pass type I membrane protein |
| Tissue Location | Expressed in liver (at protein level) (PubMed:30118681). Ubiquitously expressed (PubMed:11146108). High levels in thymus, liver and lung. In the brain, preferentially expressed in cortical, hippocampal and olfactory neurons (PubMed:11146108). |
Thousands of laboratories across the world have published research that depended on the performance of antibodies from Abcepta to advance their research. Check out links to articles that cite our products in major peer-reviewed journals, organized by research category.
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Provided below are standard protocols that you may find useful for product applications.
Background
Ern1 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.
References
Li, H., et al. Proc. Natl. Acad. Sci. U.S.A. 107(37):16113-16118(2010)Auf, G., et al. Proc. Natl. Acad. Sci. U.S.A. 107(35):15553-15558(2010)Oikawa, D., et al. FEBS Lett. 584(5):1066-1070(2010)Yang, L., et al. PLoS ONE 5 (7), E11621 (2010) :Ghosh, R., et al. PLoS ONE 5 (3), E9575 (2010) :
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