All Photos(2)
Synonym(s):
CBX1, TREB-5, TREB5, XBP-1, XBP1, XBP1s, XBP2
UNSPSC Code:
12352203
NACRES:
NA.43
Recommended Products
biological source
rabbit
Quality Level
antibody form
affinity isolated antibody
antibody product type
primary antibodies
clone
polyclonal
form
buffered aqueous solution
mol wt
28
40
species reactivity
rat, mouse, human
concentration
2.11 mg/ml
technique(s)
immunofluorescence: 1:50-1:200
western blot: 1:500-1:2000
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
target post-translational modification
unmodified
Gene Information
human ... XBP1(7494)
General 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.
Immunogen
Recombinant fusion protein containing a sequence corresponding to amino acids 1-261 of human XBP1 (NP_005071.2).
Physical form
PBS with 0.02% sodium azide,50% glycerol,pH7.3.
Storage and Stability
Store at -20℃. Avoid freeze / thaw cycles.
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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