Render Target: STATIC
Render Timestamp: 2024-10-15T10:09:34.509Z
Commit: 56767fe525c928647c8401233a175d0d607d385d
XML generation date: 2024-09-30 01:55:33.633
Product last modified at: 2024-09-30T08:01:49.972Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77

XBP-1s (E7M5C) Mouse mAb #47134

Filter:
  • WB
  • IF
  • F

    Supporting Data

    REACTIVITY H
    SENSITIVITY Endogenous
    MW (kDa) 60
    Source/Isotype Mouse IgG1
    Application Key:
    • WB-Western Blotting 
    • IF-Immunofluorescence 
    • F-Flow Cytometry 
    Species Cross-Reactivity Key:
    • H-Human 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunofluorescence (Immunocytochemistry) 1:100
    Flow Cytometry (Fixed/Permeabilized) 1:200

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

    For a carrier free (BSA and azide free) version of this product see product #30163.

    Protocol

    Specificity / Sensitivity

    XBP-1s (E7M5C) Mouse mAb recognizes endogenous levels of total XBP-1s protein.

    Species Reactivity:

    Human

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val224 of human XBP-1s protein.

    Background

    Following protein synthesis, secretory, intra-organellar, and transmembrane proteins translocate into the endoplasmic reticulum (ER) where they are post-translationally modified and properly folded. The accumulation of unfolded proteins within the ER triggers an adaptive mechanism known as the unfolded protein response (UPR) that counteracts compromised protein folding (1). The transmembrane serine/threonine kinase IRE1, originally identified in Saccharomyces cerevisiae, is a proximal sensor for the UPR that transmits the unfolded protein signal across the ER membrane (2-4). The human homolog IRE1α was later identified and is ubiquitously expressed in human tissues (5). Upon activation of the unfolded protein response, IRE1α splices X-box binding protein 1 (XBP-1) mRNA through an unconventional mechanism using its endoribonuclease activity (6). This reaction converts XBP-1 from an unspliced XBP-1u isoform to the spliced XBP-1s isoform, which is a potent transcriptional activator that induces expression of many UPR responsive genes (6).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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