*Optimal dilutions/concentrations should be determined by the researcher.
Not tested in other applications.
HepG2 , HepG2 (3 μM Thapsigargin treatment for 12 hr)
Mouse, Rat, Bovine, Pig, Rhesus Monkey(>80% identity)
1XPBS, 20% Glycerol (pH7). 0.025% ProClin 300 was added as a preservative.
Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
1.38 mg/ml (Please refer to the vial label for the specific concentration.)
Recombinant protein encompassing a sequence within the center region of Human XBP1(S). The exact sequence is proprietary.
Purified by antigen-affinity chromatography.
For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
X-box binding protein 1 , TREB-5 , TREB5 , XBP-1 , XBP2
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]
GTX122156 WB Image
Untreated (–) and treated (+) HepG2 whole cell extracts (30 μg) were separated by 10% SDS-PAGE, and the membrane was blotted with XBP1 antibody [N3C3] (GTX122156) diluted at 1:1000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.