This antibody is purified through a protein A column, followed by peptide affinity purification.
Immunogen
This XBP1 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 217-244 amino acids from the C-terminal region of human XBP1.
XBP1
Reactivity: Human
ELISA
Host: Mouse
Monoclonal
1C4
unconjugated
Application Notes
WB: 1:1000
Restrictions
For Research Use only
Format
Liquid
Buffer
Purified polyclonal antibody supplied in PBS with 0.09 % (W/V) sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C,-20 °C
Storage Comment
XBP1 Antibody (C-term) can be refrigerated at 2-8 °C for up to 6 months. For long term storage, place the at -20 °C.
Expiry Date
6 months
So, Chen, Wang, Wu, Huang, Lai, Pan, Kang, Huang: "Midazolam regulated caspase pathway, endoplasmic reticulum stress, autophagy, and cell cycle to induce apoptosis in MA-10 mouse Leydig tumor cells." in: OncoTargets and therapy, Vol. 9, pp. 2519-33, (2016) (PubMed).
Target
XBP1
(X-Box Binding Protein 1 (XBP1))
Alternative Name
XBP1
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.