Recombinant Human ERN1 Protein, N-His (PX-P5710) expressed in E. coli, Purity: >90% as determined by SDS-PAGE..
Highlights
High Purity (>90% as determined by SDS-PAGE.) — Verified by SDS-PAGE for downstream accuracy.
E. coli Expression — Optimized for functional studies.
表达系统
E. coli
Accession号
O75460
蛋白长度
Phe571-Leu977
应用
ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
种属
Homo sapiens (Human)
性质
Recombinant
内毒素水平
Please contact with the lab for this information.
纯度
>90% as determined by SDS-PAGE.
预测分子量
49.11 kDa
状态
Lyophilized
保存溶液
Lyophilized from a solution in PBS pH 7.4, 0.02% NLS, 1mM EDTA, 4% Trehalose, 1% Mannitol.
Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
重悬
Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details.
运输
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性和存储
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Serine/threonine-protein kinase/endoribonuclease IRE1 (ERN1) is a ~109 kDa protein. Serine/threonine-protein kinase and endoribonuclease that acts as a key sensor for the endoplasmic reticulum unfolded protein response (UPR). 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 proteins 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. The endoribonuclease activity is specific for XBP1 mRNA and excises 26 nucleotides from XBP1 mRNA. The resulting spliced transcript of XBP1 encodes a transcriptional activator protein that up-regulates expression of UPR target genes.
1. Iwawaki, T. et al. (2001) Nature cell biology 3, 158-64. PMID: 11175748
2. Yoshida, H. et al. (2001) Cell 107, 881-91. PMID: 11779464
3. Liu, CY. et al. (2003) The Journal of biological chemistry 278, 17680-7. PMID: 12637535
4. Lisbona, F. et al. (2009) Molecular cell 33, 679-91. PMID: 19328063
5. Ali, MM. et al. (2011) The EMBO journal 30, 894-905. PMID: 21317875
6. Liu, J. et al. (2017) Nature communications 8, 14186. PMID: 28128204
