| 存储条件 |
|---|
| Product Name | XBP1S Rabbit pAb |
|---|---|
| Antibody Type | Primary Antibodies |
| Immunogen | Recombinant fusion protein containing a sequence corresponding to amino acids 188-287 of human XBP1S. (NP_001073007.1). |
| Clonality | Polyclonal |
|---|---|
| Isotype | IgG |
| Host Species | Rabbit |
| Tested Applications | ICC/IFWB |
| WB:1:500-1:1000 ICC:1:50-1:200 | |
| Species Reactivity | HumanMouseRat |
| Concentration | 1mg/ml |
| Purification | Affinity purified |
| Gene Symbol | XBP1 |
|---|---|
| Gene Synonyms | XBP2 TREB5 XBP-1 TREB-5 |
| Gene Full Name | X-box binding protein 1 |
| Gene Summary | This gene 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. [provided by RefSeq, Jul 2008] |
| Molecular Weight(MW) | 40KDa( Observed MW 60kDa/55kDa) |
| Cellular Localization | Nucleus,Cytoplasm. |
WB
Western blot analysis of lysates from wild type (WT) and 293T cells transfected with XBP1S, using XBP1S Rabbit pAb at 1:400 dilution. Secondary antibody: HRP-conjugated Goat anti-Rabbit IgG (H+L)at 1:10000 dilution. Lysates/proteins: 25μg per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 20s.
ICC/IF
Immunofluorescence analysis of HepG2 cells using XBP1S Rabbit pAb at dilution of 1:20 (40x lens). Secondary antibody: Cy3 conjugated Goat anti-Rabbit IgG (H+L) at 1:500 dilution. Blue: DAPI for nuclear staining.| Application Notes | WB:1:500-1:1000 ICC:1:50-1:200 |
|---|
| Form | Liquid |
|---|---|
| Storage Instructions | Store at -20℃. Avoid freeze / thaw cycles. |
| Storage Buffer | Buffer: PBS with 0.09% Sodium azide,50% glycerol,pH7.3. |
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