Mouse Endocan/ESM-1 Antibody

(2 citations)   
  • Species Reactivity
    Mouse
  • Specificity
    Detects mouse Endocan/ESM-1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 25% cross-reactivity with recombinant human Endocan is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant mouse Endocan/ESM-1
    Trp20-Arg184
    Accession # Q9QYY7
  • 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.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Mouse Endocan/ESM‑1 (Catalog # 1999-EC)
  • Immunohistochemistry
    5-15 µg/mL
    See below
  • Neutralization
    Measured by its ability to neutralize Endocan/ESM‑1-mediated adhesion of the Jurkat human acute T cell leukemia cell line. The Neutralization Dose (ND50) is typically 1-5 µg/mL in the presence of 25 µg/mL Recombinant Mouse Endocan/ESM‑1.
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
Immunohistochemistry
Endocan/ESM‑1 in Mouse Embryo. Endocan/ESM‑1 was detected in perfusion fixed frozen sections of mouse embryo (13 d.p.c.) using Goat Anti-Mouse Endocan/ESM‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1999) at 5 µg/mL overnight at 4 °C. Tissue was stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to the retina. View our protocol for Fluorescent IHC Staining of Frozen Tissue Sections.
Cell Adhesion Mediated by Endocan/ESM‑1 and Neutralization by Mouse Endocan/ESM‑1 Antibody. Recombinant Mouse Endocan/ESM‑1 (Catalog #
1999‑EC), immobilized onto a microplate, supports the adhesion of the Jurkat human acute T cell leukemia cell line in a dose-dependent manner (orange line). Adhesion elicited by Recombinant Mouse Endocan/ESM‑1 (25 µg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse Endocan/ESM‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1999). The ND50 is typically 1‑5 µg/mL.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 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: Endocan/ESM-1

Endocan (endothelial cell proteoglycan; also known as endothelial-cell specific molecule-1 [ESM-1]), is a 50 kDa, monomeric, secreted, cysteine-rich proteoglycan identified initially in endothelial cells of the kidney and lung (1). Mouse Endocan is synthesized as a 184 amino acid (aa) precursor that contains a 21 aa signal sequence and a 20 kDa, 163 aa mature region (2). The N-terminal 2/3 of the molecule contains 18 cysteine residues and there are no potential N-linked glycosylation sites. Based on human Endocan, there are at least two potential O-linked glycosylation sites, one of which will likely be utilized on Ser at position # 136 of the mature molecule (3). The posttranslational modification is approximately 30 kDa in size. It consists of a single dermatan sulfate chain that contains 4-O sulfated N-acetyl galactosamine with alpha -iduronate. This chain is suggested to bind HGF and contribute to HGF mitogenic activity (4). Mature mouse Endocan is 96% and 74% aa identical to rat and human Endocan, respectively. In human, there is a potential for an alternate splice variant. It shows a deletion of aa’s 82 through 131, a range which would not remove the dermatan sulfate attachment site (4). It is not known if such a splice form exists in mouse. Endocan is expressed by endothelial cells, adipocytes, bronchial epithelium and distal renal tubular epithelium (1, 5, 6). It is upregulated by TNF-alpha and VEGF, (1, 7) and is known to bind to LFA-1 ( alpha L beta 2) on the surface of PBMCs, blocking LFA-1 interaction with ICAM-1 (8). Normal circulating levels of Endocan are approximately 1 ng/mL (6).

  • References:
    1. Lassalle, P. et al. (1996) J. Biol. Chem. 271:20458.
    2. Lassalle, P. (1999) Genbank Accession #: Q9QYY7.
    3. Bechard, D. et al. (2001) J. Biol. Chem. 276:48341.
    4. Aitkenhead, M. et al. (2002) Microvasc. Res. 63:159.
    5. Wellner, M. et al. (2003) Horm. Metab. Res. 35:217
    6. Bechard, D. et al. (2000) J. Vasc. Res. 37:417.
    7. Tsai, J.C. et al. (2002) J. Vasc. Res. 39:148.
  • Entrez Gene IDs:
    11082 (Human); 71690 (Mouse)
  • Alternate Names:
    Endocan; endothelial cell-specific molecule 1; ESM1; ESM-1; IGFBP-rp6
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.

2 Citations: Showing 1 - 2
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Species
Applications
Sample Type
  1. Integrin beta1 controls VE-cadherin localization and blood vessel stability.
    Authors: Yamamoto H, Ehling M, Kato K, Kanai K, van Lessen M, Frye M, Zeuschner D, Nakayama M, Vestweber D, Adams R
    Nat Commun, 2015;6(0):6429.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: IHC
  2. Transcriptional profiling of VEGF-A and VEGF-C target genes in lymphatic endothelium reveals endothelial-specific molecule-1 as a novel mediator of lymphangiogenesis.
    Authors: Shin JW, Huggenberger R, Detmar M
    Blood, 2008;112(6):2318-26.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: IHC Frozen
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