XBP1 Rabbit Polyclonal Antibody

CAT#: TA383367S

XBP1s Rabbit polyclonal Antibody

Product Images

Western blot analysis of extracts of various cell lines, using XBP1s antibody (TA383367) at 1:1000 dilution.HeLa cells were treated by Tunicamycin (2 μg/mL) for 8 hours.C6 cells were treated by Tunicamycin (2 μg/mL) for 8 hours.|Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution.|Lysates/proteins: 25ug per lane.|Blocking buffer: 3% nonfat dry milk in TBST.|Detection: ECL Basic Kit .|Exposure time: 10s.

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  Immunohistochemistry of paraffin-embedded Rat heart using XBP1s antibody (TA383367) at dilution of 1:100 (40x lens).Perform microwave antigen retrieval with 10 mM PBS buffer pH 7.2 before commencing with IHC staining protocol.

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  Immunohistochemistry of paraffin-embedded Hep G2 using XBP1s antibody (TA383367) at dilution of 1:100 (40x lens).Perform microwave antigen retrieval with 10 mM PBS buffer pH 7.2 before commencing with IHC staining protocol.

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  Immunohistochemistry of paraffin-embedded Human mammary cancer using XBP1s antibody (TA383367) at dilution of 1:100 (40x lens).Perform microwave antigen retrieval with 10 mM PBS buffer pH 7.2 before commencing with IHC staining protocol.

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  Immunohistochemistry of paraffin-embedded Human stomach using XBP1s antibody (TA383367) at dilution of 1:100 (40x lens).Perform microwave antigen retrieval with 10 mM PBS buffer pH 7.2 before commencing with IHC staining protocol.

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Specifications

Product Data

• Applications: IHC, WB
• Recommended Dilution: WB,1:500 - 1:2000
  IHC,1:50 - 1:200
• Reactivities: Human, Mouse, Rat
• Host: Rabbit
• Isotype: IgG
• Clonality: Polyclonal
• Immunogen: A synthetic peptide corresponding to a sequence within amino acids 300-376 of human XBP1s (NP_001073007.1).
• Formulation: Buffer: PBS with 0.02% sodium azide,50% glycerol,pH7.3.
• Concentration: lot specific
• Purification: Affinity purification
• Conjugation: Unconjugated
• Storage: Store at -20℃. Avoid freeze / thaw cycles.
• Stability: Shelf life: one year from despatch.
• Predicted Protein Size: 28kDa/40kDa
• Gene Name: X-box binding protein 1
• Database Link:
  Entrez Gene 7494 Human
  UniProt ID P17861
• Background: 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.
• Synonyms: TREB5; XBP-1; XBP2