Human CD109 Antibody

(1 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human CD109 in direct ELISAs.
  • Source
    Monoclonal Mouse IgG2A Clone # 496920
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human CD109
    Val22-Ser1268 (Tyr703Ser & Thr1241Met)
    Accession # Q6YHK3
  • 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
  • Flow Cytometry
    2.5 µg/106 cells
    See below
  • Immunohistochemistry
    8-25 µg/mL
    See below
  • CyTOF-ready
    Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
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 CD109 in A431 Human Cell Line by Flow Cytometry. A431 human epithelial carcinoma cell line was stained with Mouse Anti-Human CD109 Monoclonal Antibody (Catalog # MAB4385, filled histogram) or isotype control antibody (Catalog # MAB003, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B).
Immunohistochemistry
CD109 in Human Placenta. CD109 was detected in immersion fixed paraffin-embedded sections of human placenta using Mouse Anti-Human CD109 Monoclonal Antibody (Catalog # MAB4385) at 10 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in endothelial cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
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: CD109

CD109 is a GPI-anchored member of the alpha-2-macroglobulin (A2M) and complement family of proteins (1). Mature human CD109 contains a bait region with recognition sequences for multiple proteases, an internal thioester bond, and a domain similar to the receptor binding domain of A2M (2). Cleavage of A2M family proteins within the bait region activates the thioester bond to promote covalent bonding to nucleophilic groups in adjacent molecules (3, 4). Within the region included in this recombinant protein, human CD109 shares 71-73% amino acid (aa) sequence identity with mouse and rat CD109. It shares 27-33% aa sequence identity with A2M and complement factors C3, C4, and C5. Alternate splicing of human CD109 generates two isoforms with short deletions and one that is truncated within the bait region. CD109 is expressed on activated T cells and platelets, hematopoietic stem cells, megakaryocyte precursors, vascular endothelial cells, basal and myoepithelial cells of secretory glands, and squamous cell carcinomas (2, 5-9). It is produced as a 170-180 kDa glycoprotein that is autocatalytically processed to 150 kDa and 120 kDa forms (2, 6, 10). CD109 on keratinocytes binds TGF-beta and associates with TGF-beta RI and TGF-beta RII, resulting in inhibition of TGF-beta signaling (11). Polymorphisms of CD109 include the platelet-specific Gov antigen and the blood group ABH antigens (12, 13). Alloantibodies directed against these antigens result in unsuccessful platelet transfusions, neonatal alloimmune thrombocytopenia, and posttransfusion purpura (14).

  • References:
    1. Travis, J. and G.S. Salvesen (1983) Annu. Rev. Biochem. 52:655.
    2. Lin, M. et al. (2002) Blood 99:1683.
    3. Christensen, U. and L. Sottrup-Jensen (1984) Biochemistry 23:6619.
    4. Wallis, R. et al. (2007) J. Biol. Chem. 282:7844.
    5. Murray, L.J. et al. (1999) Exp. Hematol. 27:1282.
    6. Haregewoin, A. et al. (1994) Cell. Immunol. 156:357.
    7. Hasegawa, M. et al. (2007) Pathol. Int. 57:245.
    8. Brashem-Stein, C. et al. (1988) J. Immunol. 140:2330.
    9. Hashimoto, M. et al. (2004) Oncogene 23:3716.
    10. Solomon, K.R. et al. (2004) Gene 327:171.
    11. Finnson, K.W. et al. (2006) FASEB J. 20:1525.
    12. Schuh, A.C. et al. (2002) Blood 99:1692.
    13. Kelton, J.G. et al. (1998) J. Lab. Clin. Med. 132:142.
    14. Rozman, P. (2002) Transpl. Immunol. 10:165.
  • Entrez Gene IDs:
    135228 (Human); 235505 (Mouse); 363104 (Rat)
  • Alternate Names:
    150 kDa TGF-beta-1-binding protein; activated T-cell marker CD109; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 7; CD109 antigen (Gov platelet alloantigens); CD109 antigen; CD109 molecule; CD109; CPAMD7; CPAMD7r150; DKFZp762L1111; FLJ38569; FLJ41966; Gov platelet alloantigens; p180; Platelet-specific Gov antigen; RP11-525G3.1
Related Research Areas
Citations:

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.

1 Citations: Showing 1 - 1

  1. High expression of CD109 antigen regulates the phenotype of cancer stem-like cells/cancer-initiating cells in the novel epithelioid sarcoma cell line ESX and is related to poor prognosis of soft tissue sarcoma.
    Authors: Emori, Makoto, Tsukahara, Tomohide, Murase, Masaki, Kano, Masanobu, Murata, Kenji, Takahashi, Akari, Kubo, Terufumi, Asanuma, Hiroko, Yasuda, Kazuyo, Kochin, Vitaly, Kaya, Mitsunor, Nagoya, Satoshi, Nishio, Jun, Iwasaki, Hiroshi, Sonoda, Tomoko, Hasegawa, Tadashi, Torigoe, Toshihik, Wada, Takuro, Yamashita, Toshihik, Sato, Noriyuki
    PLoS ONE, 2013;8(12):e84187.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
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