Human Angiopoietin-4 Antibody

(3 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Angiopoietin‑4 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) ANG-1 and rhANG-2 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human Angiopoietin-4
    Gln23-Ile503
    Accession # Q9Y264
  • 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 Human Angiopoietin‑4 (Catalog # 964-AN)
  • Immunohistochemistry
    5-15 µg/mL
    See below
  • Blockade of Receptor-ligand Interaction

    In a functional ELISA, 1-3 µg/mL of this antibody will block 50% of the binding of 50 ng/mL of Recombinant Human Angiopoietin-4 (Catalog # 964-AN) to immobilized Recombinant Human Tie-2 Fc Chimera (Catalog # 313-TI) coated at 4 µg/mL (100 µL/well). At 50 μg/mL, this antibody will block >85% of the binding.

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
Angiopoietin‑4 in Human Lung. Angiopoietin‑4 was detected in immersion fixed paraffin-embedded sections of human lung using 10 µg/mL Goat Anti-Human Angiopoietin‑4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF964) overnight at 4 °C. Before incubation with the primary antibody tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Lower panel shows a lack of labeling if primary antibodies are omitted and tissue is stained only with secondary antibody followed by incubation with detection reagents. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
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: Angiopoietin-4

GITR (glucocorticoid-induced TNF receptor superfamily-related protein, also named AITR, activation-inducible TNF receptor superfamily-related protein) and GITR ligand (GITRL) are novel members of the TNF receptor (TNFR) and TNF superfamilies (SF) that have been designated TNFRSF18 and TNFSF18, respectively. Human GITRL cDNA encodes a 177 amino acid residues type II membrane protein. The carboxy-terminal extracellular domain shows sequence identity to TNF/TNFSF2 (21%), Fas ligand/TNFSF6 (21%), TRAIL/TNFSF10 (18%), and lymphotoxin alpha /TNFSF1 (18%). GITRL is constitutively expressed in human umbilical vein endothelial cells but is not expressed in resting or stimulated T cell lines, B cell lines or peripheral blood mononuclear cells. GITR, the receptor for GITRL, is expressed at low levels in peripheral blood T cells, bone marrow, thymus, spleen and lymph nodes. In contrast to mouse GITR, expression of human GITR is not induced by treatment with dexamethasone, but is up-regulated by antigen-receptor stimulation or by treatment with soluble anti-CD3 plus anti-CD28 or PMA plus ionomycin. Ligation of GITR has been found to induce nuclear factor (NF)-kappa B activation via TNF receptor-associated factor 2 and protect cells from TCR activation-induced cell death. It has been proposed that GITRL and GITR may modulate T lymphocyte functions in peripheral tissues.

  • References:
    1. Nocentini, G. et al. (1997) Proc. Natl. Acad. Sci. USA 94:6216.
    2. Kwon, B. et al. (1999) J. Biol. Chem. 274:6056.
    3. Gurney, A.L. et al. (1999) Current Biology 9:215.
    4. Kwon, B. et al. (1999) Current Opinion in Immunology 11:340.
  • Entrez Gene IDs:
    51378 (Human)
  • Alternate Names:
    AGP4; ANG3; ANG-3; ANG-4; ANG4angiopoietin-3; angiopoietin 4; Angiopoietin-3; Angiopoietin-4; ANGPT4; dJ824F16.2 (angiopoietin 4); MGC138181; MGC138183
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.

3 Citations: Showing 1 - 3
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Species
Applications
Sample Type
  1. Angiopoietin-4 promotes glioblastoma progression by enhancing tumor cell viability and angiogenesis.
    Authors: Brunckhorst MK, Wang H, Lu R, Yu Q
    Cancer Res., 2010;70(18):7283-93.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  2. Enhancement of angiogenic effectors through hypoxia-inducible factor in preterm primate lung in vivo.
    Authors: Asikainen TM, Waleh NS, Schneider BK, Clyman RI, White CW
    Am. J. Physiol. Lung Cell Mol. Physiol., 2006;291(4):L588-95.
    Species: Primate - Baboon
    Sample Type: Tissue Homogenates
    Application: WB
  3. Activation of hypoxia-inducible factors in hyperoxia through prolyl 4-hydroxylase blockade in cells and explants of primate lung.
    Authors: Asikainen TM, Schneider BK, Waleh NS, Clyman RI, Ho WB, Flippin LA, Gunzler V, White CW
    Proc. Natl. Acad. Sci. U.S.A., 2005;102(29):10212-7.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
Cell and Tissue Staining Kits
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Anti-Goat HRP-DAB Cell & Tissue Staining Kit

CTS008 13
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Immunohistochemistry Reagents
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Antigen Retrieval Reagent-Universal

CTS015 10
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Antigen Retrieval Reagent-Basic

CTS013 4
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Mounting Medium

CTS011 4
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Antigen Retrieval Reagent Sampler (50 mL each)

CTS016
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Antigen Retrieval Reagent-Acidic

CTS014
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NorthernLights Guard Mounting Media

NL996
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VisUCyte Antigen Retrieval Reagent-Universal

VCTS023
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VisUCyte Antigen Retrieval Reagent-Acidic

VCTS022
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VisUCyte Antigen Retrieval Reagent-Basic

VCTS021
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Isotype Controls
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Normal Goat IgG Control

Ctrl AB-108-C 191  
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Secondary Antibodies
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Goat IgG HRP-conjugated Antibody

WB, Simple Western HAF109 19  
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Goat IgG HRP-conjugated Antibody

WB HAF017 15  
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Goat IgG (H+L) PE-conjugated Antibody

Flow F0107 4  
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Donkey Anti-Goat IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL001 9
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Donkey Anti-Goat IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL003 5
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Goat IgG (H+L) APC-conjugated Antibody

Flow F0108 6  
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Goat IgG Horseradish Peroxidase-conjugated Antibody

WB HAF019 6  
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Donkey Anti-Goat IgG Antibody

WB AF109 6
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Donkey Anti-Goat IgG Biotinylated Antibody

WB BAF109 3
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Goat IgG VisUCyte HRP Polymer

IHC VC004  
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Goat IgG (H+L) Fluorescein-conjugated Antibody

Flow F0109 2  
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Donkey Anti-Goat IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL002
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Chicken Anti-Goat IgG Biotinylated Antibody

WB BAF019
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Rabbit Anti-Goat IgG Biotinylated Antibody

WB BAF017
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Rabbit Anti-Goat IgG (H+L) Affinity Purified PAb, X Absorbed

WB, ELISA R-401-C-ABS
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Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

Flow F0124
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