Anti-XBP1 Antibody Picoband®
Primary Antibody supplied by Boster Bio Read more ›

Product Description
XBP1, also known as X-box binding protein 1, is a protein which in humans is encoded by the XBP1 gene. It encodes a transcription factor that regulates MHC class II genes by binding to a promoter element referred to as an X box. This gene product is a bZIP protein, which was also identified as a cellular transcription factor that binds to an enhancer in the promoter of the T cell leukemia virus type 1 promoter. It may increase expression of viral proteins by acting as the DNA binding partner of a viral transactivator. It has been found that upon accumulation of unfolded proteins in the endoplasmic reticulum (ER), the mRNA of this gene is processed to an active form by an unconventional splicing mechanism that is mediated by the endonuclease inositol-requiring enzyme 1 (IRE1). The resulting loss of 26 nt from the spliced mRNA causes a frame-shift and an isoform XBP1 (S), which is the functionally active transcription factor. The isoform encoded by the unspliced mRNA, XBP1 (U), is constitutively expressed, and thought to function as a negative feedback regulator of XBP1 (S), which shuts off transcription of target genes during the recovery phase of ER stress. A pseudogene of XBP1 has been identified and localized to chromosome 5.
Product information
| Supplier | Boster Bio |
|---|---|
| ABMIUM evidence status | ABMIUM Verified™ collaborator-tested data |
| Catalogue reference | PB9463 |
| Product category | Primary Antibodies |
| Reactive species | Human, Mouse, Rat |
| Tested applications | ELISA, Flow Cytometry, IF/ICC, IHC, IHC-P, WB |
| Available conjugations | Unconjugated, Biotin, Cy3, Fluoro488, Fluoro550, Fluoro594, FITC, HRP, APC, PE, Fluoro647 |
| Gene name | XBP1 |
| Protein name | X-box-binding protein 1 |
| Specificity | No cross reactivity with other proteins. |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human XBP1, identical to the related mouse and rat sequences. |
| Host | Rabbit |
| Clonality | Polyclonal |
| Isotype | Rabbit IgG |
| Purification | Immunogen affinity purified. |
| Storage | Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles. |
| UniProt | P17861 |
| NCBI Gene ID | 7494 |
Available variants
| Conjugation | Size |
|---|---|
| Unconjugated | 100 μg/vial |
| Biotin | 100 μg/vial |
| Cy3 | 100 μg/vial |
| Fluoro488 | 100 μg/vial |
| Fluoro550 | 100 μg/vial |
| Fluoro594 | 100 μg/vial |
| FITC | 100 μg/vial |
| HRP | 100 μg/vial |
| APC | 100 μg/vial |
| PE | 100 μg/vial |
| Fluoro647 | 100 μg/vial |
Key Facts
| Target | X-box-binding protein 1 |
| Also known as | TREB5; X box binding protein 1; XBP 1; XBP1; XBP1s; XBP-1S; XBP1U; XBP2 |
| Concentration | Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml. |
| Species reactivity | Human,Mouse,Rat |
| Observed band | 29 kDa |
| Purity | No cross reactivity with other proteins. |
| Form / buffer | Lyophilized |
| Shelf life | Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles. |
| Host species | Rabbit |
| Clonality | Polyclonal |
| Isotype | Rabbit IgG |
| Conjugation | Unconjugated|Biotin|Cy3|Fluoro488|Fluoro550|Fluoro594|FITC|HRP|APC|PE|Fluoro647 |
| Non-cross-reactive with | No cross-reactivity with other proteins |
| Tested applications |
ELISAFlow CytometryIF/ICCIHCIHC-PWB |
| Dilution range | Western blot, 0.1-0.5μg/ml, Human Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human, Mouse, Rat Immunocytochemistry/Immunofluorescence, 2μg/ml, Human Flow Cytometry (Fixed), 1-3μg/1x106 cells, Human |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human XBP1, identical to the related mouse and rat sequences. |
| Purification | Immunogen affinity purified. |
Reactivity & Application Validation
3 speciess| Species | WB | IHC | IHC-P | IHC-F | IF/ICC | FLOW CYTOMETRY | ELISA | IP |
|---|---|---|---|---|---|---|---|---|
| Human | ||||||||
| Mouse | ||||||||
| Rat |
Specifications
Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human, Mouse, Rat
Immunocytochemistry/Immunofluorescence, 2μg/ml, Human
Flow Cytometry (Fixed), 1-3μg/1x106 cells, Human
Storage & Stability
*This antibody is supplied in a stabilized formulation.
Compatibility with conjugation reactions depends on the chemistry of the conjugation method used.
For conjugation methods that are not compatible with the stabilizing components present in this formulation, a carrier-free antibody format is required.
Compliance & Certifications
Not intended for diagnostic or therapeutic use.