Human XBP1 (S Isoform) Antibody

Catalog #: MAB4257
3 Citations Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB4257
MAB4257-SP

Detection of XBP1S in RPMI 8226 Human Cell Line by Flow Cytometry.

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All XBP1 Antibodies

Product Details

Citations (3)

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human XBP1 (S Isoform) Antibody Summary

Species Reactivity

Human

Specificity

Detects human XBP1 (S Isoform) (XBP1S) in direct ELISAs. This segment is found only in the XBP1S (spliced) variant. Does not detect XBP1U (unspliced).

Source

Monoclonal Mouse IgG₁ Clone # 525904

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human XBP1S
Ser188-Leu287
Accession # NP_001073007

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

2.5 µg/10⁶ cells

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Intracellular Staining by Flow Cytometry

Detection of XBP1S antibody in RPMI 8226 Human Cell Line antibody by Flow Cytometry.

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Detection of XBP1S in RPMI 8226 Human Cell Line by Flow Cytometry. RPMI 8226 human multiple myeloma cell line was stained with Mouse Anti-Human XBP1S Monoclonal Antibody (Catalog # MAB4257, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Allophycocyanin-conjugated Anti-Mouse IgG F(ab')₂Secondary Antibody (Catalog # F0101B). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with saponin.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: XBP1

X-box binding protein 1 (XBP1; also tax-responsive element-binding protein 5 (TREB5) is a ubiquitously expressed member of the bZIP family of proteins. The spliced form of XBP1 (XBP1S) is a 376 amino acid (aa), 55 kDa transcription factor essential for the unfolded protein response. XBP1S is formed during endoplasmic reticulum stress by IRE-1-mediated splicing that creates a 210 aa substitution for XBP1 aa 161-261. XBP1S contains a basic DNA binding motif (aa 72-94) and a leucine-zipper domain (aa 98-126). Within the region used as an immunogen, human XBP1S shares 96% aa sequence identity with mouse XBP1S.

Long Name

X-box Binding Protein 1

Entrez Gene IDs

7494 (Human); 22433 (Mouse); 289754 (Rat)

Alternate Names

HTF; TREB5; X-box binding protein 1; X-box-binding protein 1; XBP1; XBP-1; XBP2; XBP2Tax-responsive element-binding protein 5

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

Citations for Human XBP1 (S Isoform) Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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