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CoraLite® Plus 488-conjugated XBP1S/XBP1U Polyclonal antibody
XBP1S/XBP1U Polyclonal Antibody for FC (Intra)
Host / Isotype
Rabbit / IgG
Reactivity
human, mouse
Applications
FC (Intra)
Conjugate
CoraLite® Plus 488 Fluorescent Dye
Cat no : CL488-24168
Synonyms
Validation Data Gallery
Tested Applications
Positive FC (Intra) detected in | HepG2 cells |
Recommended dilution
Application | Dilution |
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Flow Cytometry (FC) (INTRA) | FC (INTRA) : 0.80 ug per 10^6 cells in a 100 µl suspension |
It is recommended that this reagent should be titrated in each testing system to obtain optimal results. | |
Sample-dependent, Check data in validation data gallery. |
Product Information
CL488-24168 targets XBP1S/XBP1U in FC (Intra) applications and shows reactivity with human, mouse samples.
Tested Reactivity | human, mouse |
Host / Isotype | Rabbit / IgG |
Class | Polyclonal |
Type | Antibody |
Immunogen | XBP1S/XBP1U fusion protein Ag21454 |
Full Name | X-box binding protein 1 |
Calculated Molecular Weight | 261 aa, 29 kDa |
Observed Molecular Weight | ~32 kDa; ~60 kDa |
GenBank Accession Number | BC000938 |
Gene Symbol | XBP1 |
Gene ID (NCBI) | 7494 |
Conjugate | CoraLite® Plus 488 Fluorescent Dye |
Excitation/Emission Maxima Wavelengths | 493 nm / 522 nm |
Form | Liquid |
Purification Method | Antigen affinity purification |
Storage Buffer | PBS with 50% Glycerol, 0.05% Proclin300, 0.5% BSA, pH 7.3. |
Storage Conditions | Store at -20°C. Avoid exposure to light. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. |
Background Information
XBP1 is also named as XBP2, belongs to the bZIP family. The X-box-binding protein-1 (XBP1) is a transcriptional regulator of the ER stress response that lies downstream of inositol-requiring enzyme 1 (IRE1α) activation (PMID: 14559994). IRE1α possesses both kinase and ribonuclease activity and processes XBP1 mRNA to produce an active transcription factor in response to ER stress (PMID: 11779464, 11780124). It has been found that upon accumulation of unfolded proteins in the endoplasmic reticulum, 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. The resulting loss of 26 nt from the spliced mRNA causes a frame-shift and an isoform XBP1S, which is the functionally active transcription factor. The isoform encoded by the unspliced mRNA, XBP1U, is constitutively expressed, and thought to function as a negative feedback regulator of XBP1S, which shuts off transcription of target genes during the recovery phase of ER stress (PMID: 11850408). The unspliced XBP1U isoform is composed of 261 amino acid residues, and the spliced XBP1S isoform is composed of 376 amino acid residues. The XBP1 antibody (24168-1-AP) can detect both XBP1U and XBP1S.
Protocols
Product Specific Protocols | |
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FC protocol for CL Plus 488 XBP1S/XBP1U antibody CL488-24168 | Download protocol |
Standard Protocols | |
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Click here to view our Standard Protocols |