Human Endoglin/CD105 Antibody

(4 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Endoglin/CD105.
  • Source
    Monoclonal Mouse IgG1 Clone # 166707
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human Endoglin/CD105
    Glu26-Gly586
    Accession # Q5T9B9
  • 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
    0.25 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.
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 Endoglin/CD105 in U937 Human Cell Line by Flow Cytometry. U937 human histiocytic lymphoma cell line was stained with Mouse Anti-Human Endoglin/CD105 Monoclonal Antibody (Catalog # MAB10971, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). View our protocol for Staining Membrane-associated Proteins.
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: Endoglin/CD105

Endoglin (CD105) is a 90 kDa type I transmembrane glycoprotein of the zona pellucida (ZP) family of proteins (1‑3). Endoglin and betaglycan/T beta RIII are type III receptors for TGF beta superfamily ligands, sharing 71% aa identity in the transmembrane (TM) and cytoplasmic domains. Endoglin is highly expressed on proliferating vascular endothelial cells, chondrocytes, and syncytiotrophoblasts of term placenta, with lower amounts on hematopoietic, mesenchymal and neural crest stem cells, activated monocytes, and lymphoid and myeloid leukemic cells (2‑5). Human Endoglin cDNA encodes 658 amino acids (aa) including a 25 aa signal sequence, a 561 aa extracellular domain (ECD) with an orphan domain and a two-part ZP domain, a TM domain and a 47 aa cytoplasmic domain (1‑3). An isoform with a 14 aa cytoplasmic domain (S-endoglin) can oppose effects of long (L) Endoglin (6, 7). The human Endoglin ECD shares 65-72% aa identity with mouse, rat, bovine, porcine and canine Endoglin. Endoglin homodimers interact with TGF-beta 1 and TGF-beta 3 (but not TGF-beta 2), but only after binding T beta RII (8). Similarly, they interact with activin-A and BMP-7 via activin type IIA or B receptors, and with BMP-2 via BMPR-1A/ALK-3 or BMPR-1B/ALK-6 (9). BMP-9, however, is reported to bind Endoglin directly (10). Endoglin modifies ligand-induced signaling in multiple ways. For example, expression of Endoglin can inhibit TGF-beta 1 signals but enhance BMP7 signals in the same myoblast cell line (11). In endothelial cells, Endoglin inhibits T beta RI/ALK5, but enhances ALK1-mediated activation (12). Deletion of mouse Endoglin causes lethal vascular and cardiovascular defects, and human Endoglin haploinsufficiency can a cause the vascular disorder, hereditary hemorrhagic telangiectasia type I (13, 14). These abnormalities confirm the essential function of Endoglin in differentiation of smooth muscle, angiogenesis, and neovascularization (2‑4, 12‑14). In preeclampsia of pregnancy, high levels of proteolytically generated soluble Endoglin and VEGF R1 (sFLT1), along with low placental growth factor (PlGF), are pathogenic due to antiangiogenic activity (15).

  • References:
    1. Gougos, A. and Letarte, M. (1990) J. Biol. Chem. 265:8361.
    2. ten Dijke, P. et al. (2008) Angiogenesis 11:79.
    3. Bernabeu, C. et al. (2007) J. Cell. Biochem. 102:1375.
    4. Mancini, M.L. et al. (2007) Dev. Biol. 308:520.
    5. Moody, J.L. et al. (2007) Stem Cells 25:2809.
    6. Velasco, S. et al. (2008) J. Cell Sci. 121:913.
    7. Perez-Gomez, E. et al. (2005) Oncogene 24:4450.
    8. Cheifetz, S, et al. (1992) J. Biol. Chem. 267:19027.
    9. Barbara, N.P. et al. (1999) J. Biol. Chem. 274:584.
    10. Scharpfenecker, M. et al. (2007) J. Cell Sci. 120:964.
    11. Scherner, O. et al. (2007) J. Biol. Chem. 282:13934.
    12. Pece-Barbara, N. et al. (2005) J. Biol. Chem. 280:27800.
    13. Arthur, H.M. et al. (2000) Dev. Biol. 217:42.
    14. Lebrin, F. and C.L. Mummery (2008) Trends Cardiovasc. Med. 18:25.    
    15. Venkatesha, S. et al. (2006) Nat. Med. 12:642.
  • Entrez Gene IDs:
    2022 (Human); 13805 (Mouse); 497010 (Rat)
  • Alternate Names:
    CD105 antigen; CD105; Endoglin; ENDOsler-Rendu-Weber syndrome 1; ENG; HHT1FLJ41744; ORW; ORW1
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.

4 Citations: Showing 1 - 4
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Species
Applications
Sample Type
  1. Human dermis harbors distinct mesenchymal stromal cell subsets.
    Authors: Vaculik C, Schuster C, Bauer W, Iram N, Pfisterer K, Kramer G, Reinisch A, Strunk D, Elbe-Burger A
    J. Invest. Dermatol., 2012;132(3):563-74.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC
  2. Validation of the cardiosphere method to culture cardiac progenitor cells from myocardial tissue.
    Authors: Davis D, Zhang Y, Smith R, Cheng K, Terrovitis J, Malliaras K, Li T, White A, Makkar R, Marban E
    PLoS ONE, 2009;4(9):e7195.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: IHC Not Specified
  3. Characterization of human skin-derived mesenchymal stem cell proliferation rate in different growth conditions.
    Authors: Riekstina U, Muceniece R, Cakstina I, Muiznieks I, Ancans J
    Cytotechnology, 2008;58(3):153-62.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
  4. Therapeutic action of tranexamic acid in hereditary haemorrhagic telangiectasia (HHT): regulation of ALK-1/endoglin pathway in endothelial cells.
    Authors: Fernandez-L A, Garrido-Martin EM, Sanz-Rodriguez F, Ramirez JR, Morales-Angulo C, Zarrabeitia R, Perez-Molino A, Bernabeu C, Botella LM
    Thromb. Haemost., 2007;97(2):254-62.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG1 Isotype Control

Ctrl MAB002 138  
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Mouse IgG1 Isotype Control

Ctrl MAB002R 1
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Secondary Antibodies
Description Application Cat# Citations Images  

Mouse IgG HRP-conjugated Antibody

WB HAF007 26  
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Mouse F(ab)2 IgG (H+L) PE-conjugated Antibody

Flow F0102B 10  
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Donkey Anti-Mouse IgG NorthernLights™ NL557-conjugate Antibody

Flow, IHC, ICC NL007 9
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Donkey Anti-Mouse IgG Biotinylated Antibody

WB BAF018 1
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Mouse IgG HRP-conjugated Antibody

WB HAF018 9  
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Donkey Anti-Mouse IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL008 8
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Mouse F(ab)2 IgG (H+L) APC-conjugated Antibody

Flow F0101B 2  
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Donkey Anti-Mouse IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL009 5
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Mouse IgG Antibody

WB AF007 4
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Mouse F(ab)2 IgG (H+L) Fluorescein-conjugated Antibody

Flow F0103B 5  
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Goat Anti-Mouse IgG Biotinylated Antibody

WB BAF007 4
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Mouse/Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC002  
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Mouse IgG VisUCyte HRP Polymer Antibody

IHC VC001  
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Goat Anti-Mouse IgG Fc Affinity Purified Polyclonal Ab

G-202-C 2
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Mouse F(ab)2 IgG (H+L) PerCP-conjugated Antibody

Flow F0114  
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