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Home / Primary Antibodies / Polyclonal Antibodies

XBP1 Antibody

SKU : BHA17105338

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Mfr.No.	R31989
Clonality	Polyclonal
Description	XBP1, also known as X-box binding protein 1, is a protein which in humans is encoded by the XBP1 gene. It 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.
Formulation	0.5mg/ml if reconstituted with 0.2ml sterile DI water
Host	Rabbit
Immunogen Region	Amino acids RKRQRLTHLSPEEKALRRKLKNRVAAQ of human XBP1 were used as the immunogen for the XBP1 antibody.
Isotype	IgG
Predicted Reactivity	Human, Mouse, Rat
Reactivity	Rat, Human, Mouse
Recombinant	No
Subcellular Location	Cytoplasmic, membrane

Antigen	XBP1
Uniprot	P17861

Format	Antigen affinity purified
Purification	Antigen affinity
Storage	After reconstitution, the XBP1 antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.

Applications	IHC-P, WB, FACS
Dilution	Western blot: 0.1-0.5ug/ml,Immunohistochemistry (FFPE): 0.5-1ug/ml,Flow cytometry: 1-3ug/million cells

Product Manual	Data Sheet

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Combination SKU	Supplier No.	Size	Your price	Quantity
BHA17105338-1	R31989	100ug	$439		Add to Cart

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