XBP1 (X-box binding protein 1) | US Biological 030726 product information

This webpage contains legacy information. The product is either no longer available from the supplier or has been delisted at Labome.

product summary

company name :

US Biological

product type :

antibody

product name :

XBP1 (X-box binding protein 1)

catalog :

030726

quantity :

100 ul

clonality :

monoclonal

host :

mouse

conjugate :

nonconjugated

clone name :

13B804

reactivity :

human

product information

Catalog Number :

030726

Product wo Prefix :

XBP1 (X-box binding protein 1)

Host :

mouse

Product Type :

Mab

Category :

Antibodies

Size1 :

100 ul

Clone # USB :

13B804

Isotype :

IgG1

Desc1 :

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. Applications: Western Bloting: 1:500-1:2000. ELISA: Suggested dilution 1:10000. Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Calc Crossreactivity :

Alternate Name :

XBP2; TREB5; XBP1

Immunogen :

Purified recombinant fragment of human XBP1 expressed in E. coli.

Specificity :

Human

Purity :

Ascites

Form :

Ascites fluid, 0.03% sodium azide.

Concentration :

Not determined

Desc2 :

Product Type: Mab Isotype: IgG1 Clone No: 13B804 Host: mouse Source: human Concentration: Not determined Form: Ascites fluid, 0.03% sodium azide. Purity: Ascites Immunogen: Purified recombinant fragment of human XBP1 expressed in E. coli. Specificity: Human Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

Calc Applications Abbrev :

E WB

Storage Temperature :

-20°C

Reference :

1. J Biol Chem. 2009 May 29;284(22):14904-13. 2. Neoplasia. 2009 May;11(5):436-47. 3. Clin Cancer Res. 2009 Jun 1;15(11):3834-41.