abx012101

antibody from Abbexa

Targeting: XBP1 XBP2

Western blot (Recommended by provider)

ELISA (Recommended by provider)

Antibody Data

Product number

abx012101

Provider

Abbexa

Product name

X-Box-Binding Protein 1 (XBP1) Antibody

Antibody type

Monoclonal

Description

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.

Reactivity

Human

Host

Mouse

Conjugate

Unconjugated

Isotype

IgG

Vial size

100 µl

Storage

Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles.