XBP1 Antibody | 28-891

XBP1 Antibody | 28-891 | Gentaur UK, US & Europe Distribution

Host: Rabbit

Reactivity: Human

Homology: N/A

Immunogen: Antibody produced in rabbits immunized with a synthetic peptide corresponding a region of human XBP1.

Research Area: Transcription, Cancer, Signal Transduction, Immunology

Tested Application: E, WB

Application: XBP1 antibody can be used for detection of XBP1 by ELISA at 1:1562500. XBP1 antibody can be used for detection of XBP1 by western blot at 1.0 μg/mL, and HRP conjugated secondary antibody should be diluted 1:50, 000 - 100, 000.

Specificiy: N/A

Positive Control 1: Cat. No. 1205 - Jurkat Cell Lysate

Positive Control 2: N/A

Positive Control 3: N/A

Positive Control 4: N/A

Positive Control 5: N/A

Positive Control 6: N/A

Molecular Weight: 29 kDa

Validation: N/A

Isoform: N/A

Purification: Antibody is purified by peptide affinity chromatography method.

Clonality: Polyclonal

Clone: N/A

Isotype: N/A

Conjugate: Unconjugated

Physical State: Liquid

Buffer: Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.

Concentration: batch dependent

Storage Condition: For short periods of storage (days) store at 4˚C. For longer periods of storage, store XBP1 antibody at -20˚C. As with any antibody avoid repeat freeze-thaw cycles.

Alternate Name: XBP1, TREB5, XBP2, XBP-1

User Note: Optimal dilutions for each application to be determined by the researcher.

BACKGROUND: XBP1 is a transcription factor that regulates MHC class II genes by binding to a promoter element referred to as an X box. XBP1 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.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.