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|Tested species reactivity||Human, Mouse|
|Host / Isotype||Rabbit / IgG|
|Immunogen||An 18 amino acid peptide from near the amino terminus of human XBP-1.|
|Purification||Antigen affinity chromatography|
|Contains||0.02% sodium azide|
|Storage Conditions||Maintain refrigerated at 2-8°C for up to 3 months. For long term storage store at -20°C|
|Tested Applications||Dilution *|
|Immunocytochemistry (ICC)||10 µg/ml|
|Western Blot (WB)||0.5-2 µg/ml|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
A suggested positive control is HepG2 cell lysate.
PA5-20218 can be used with blocking peptide PEP-0351.
X box binding protein 1 (XBP-1) is a key protein in the mammalian unfolded protein response (UPR) that protects the cell against the stress of malfolded proteins in the endoplasmic reticulum (ER). Upon sensing unfolded proteins, an ER transmembrane endonuclease and kinase termed IRE1p is activated and excises an intron from XBP-1 mRNA. The spliced XBP-1 mRNA results in a 371 amino acid protein (XBP-1s) which is then translocated to the nucleus where it binds to the regulatory elements of downstream genes. Together with other UPR transcription factors such as ATF6, XBP-1 stimulates the production of ER stress proteins including the ER resident protein chaperones glucose regulated protein (GRP) 78 and GRP94.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
tax-responsive element-binding protein 5; tax-responsive element-binding protein 5 homolog; X-box-binding protein 1
D11Ertd39e; TREB-5; TREB5; XBP-1; XBP1; XBP2