Human TSPAN8 Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human TSPAN8 in Western blots.
  • Source
    Monoclonal Rat IgG2B Clone # 458811
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    NS0 mouse myeloma cell line transfected with human TSPAN8
    Met1-Lys237 (Ile35Val)
    Accession # AAH05246
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    2 µg/mL
    See below
  • Flow Cytometry
    2.5 µg/106 cells
    See below
  • CyTOF-ready
    Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
  • Immunocytochemistry
    8-25 µg/mL
    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.
Data Examples
Detection of Human TSPAN8 by Western Blot. Western blot shows lysates of COLO 205 human colorectal adenocarcinoma cell line and HT‑29 human colon adenocarcinoma cell line. PVDF membrane was probed with 2 µg/mL of Rat Anti-Human TSPAN8 Monoclonal Antibody (Catalog # MAB4734) followed by HRP-conjugated Anti-Rat IgG Secondary Antibody (Catalog # HAF005). A specific band was detected for TSPAN8 at approximately 35 kDa (as indicated). This experiment was conducted under non-reducing conditions and using Immunoblot Buffer Group 1.
Detection of TSPAN8 in HT‑29 Human Cell Line by Flow Cytometry. HT‑29 human colon adenocarcinoma cell line was stained with Rat Anti-Human TSPAN8 Monoclonal Antibody (Catalog # MAB4734, filled histogram) or isotype control antibody (Catalog # MAB0061, open histogram), followed by Allophycocyanin-conjugated Anti-Rat IgG F(ab')2 Secondary Antibody (Catalog # F0113).
Immunocytochemistry
TSPAN8 in HT‑29 Human Cell Line. TSPAN8 was detected in immersion fixed HT‑29 human colon adenocarcinoma cell line using Rat Anti-Human TSPAN8 Monoclonal Antibody (Catalog # MAB4734) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rat IgG Secondary Antibody (red; Catalog # NL013) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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: TSPAN8

Tetraspanin-8 (TSPAN8), also known as TM4SF3 and human tumor-associated antigen CO-0029, is a member of the transmembrane 4 superfamily. It is a cell surface 27‑34 kDa glycoprotein with 4 transmembrane segments, and a large extracellular loop (LEL) domain from amino acids (aa) 106‑206. Both the N- and C-termini are intracellular. TSPAN8 is expressed by multiple tumor types as well as smooth and skeletal muscle cells, endothelial cells, hematopoietic progenitor cells and non-keratinized squamous epithelium. As with other TSPAN family molecules, TSPAN8 acts as an organizer of microdomains in membranes. Molecules that may be found in these domains include CD151 (another TSPAN family member), beta 1 Integrins, Integrin alpha 4 beta 6, EpCAM, and CD13. TSPAN8 would appear to remove Integrins from the cell surface, facilitating cell motility which, in the case of tumor cells, results in metastasis. TSPAN8 shares 53% aa sequence identity with both mouse and rat TSPAN8.

  • Long Name:
    Tetraspanin 8/Transmembrane 4 Superfamily, Member 3
  • Entrez Gene IDs:
    7103 (Human); 216350 (Mouse); 171048 (Rat)
  • Alternate Names:
    CO-029; tetraspanin 8; TM4SF3; TM4SF3tspan-8; Transmembrane 4 superfamily member 3tetraspanin-8; TSPAN8; Tspan-8; Tumor-associated antigen CO-029
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Goat Anti-Rat F(ab)2 IgG (H+L) PerCP-conjugated Antibody

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