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Rabbit Polyclonal Angiopoietin 1 antibody. Suitable for WB, IHC-P, ELISA, ICC/IF and reacts with Human, Mouse, Pig samples. Cited in 56 publications. Immunogen corresponding to Synthetic Peptide within Mouse Angpt1 aa 1-50.


Images

Western blot - Anti-Angiopoietin 1 antibody (AB8451), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Angiopoietin 1 antibody (AB8451), expandable thumbnail

Publications

Key facts

Isotype
IgG
Host species
Rabbit
Storage buffer

pH: 7.2
Preservative: 0.01% Sodium azide
Constituents: 98.6% Whole serum, 0.88% Sodium chloride, 0.424% Potassium phosphate solution

Form
Liquid
Clonality
Polyclonal

Immunogen

  • Synthetic Peptide within Mouse Angpt1 aa 1-50. The exact immunogen used to generate this antibody is proprietary information. Database link O08538

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Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
WBIHC-PELISAICC/IF
Human
Tested
Tested
Expected
Expected
Mouse
Tested
Expected
Expected
Expected
Pig
Tested
Expected
Expected
Expected

Tested
Tested

Species
Human
Dilution info
1/500 - 1/2000
Notes

Using this antiserum with cell supernatants may result in high background due to other components in the serum. This can be alleviated by immunoprecipitating the antibody:antigen complex before detection, or precipitation using soluble Tie2. These methods result in a clean, strong signal. Both Ang-1 and Ang-2 proteins have predicted MW of 57 kDa and appear on blots close to predicted MW. Additional bands may be seen at approx. 75 kDa which represent highly glycosylated forms of the protein.

Species
Mouse
Dilution info
1/500 - 1/2000
Notes

Using this antiserum with cell supernatants may result in high background due to other components in the serum. This can be alleviated by immunoprecipitating the antibody:antigen complex before detection, or precipitation using soluble Tie2. These methods result in a clean, strong signal. Both Ang-1 and Ang-2 proteins have predicted MW of 57 kDa and appear on blots close to predicted MW. Additional bands may be seen at approx. 75 kDa which represent highly glycosylated forms of the protein.

Species
Pig
Dilution info
1/500 - 1/2000
Notes

Using this antiserum with cell supernatants may result in high background due to other components in the serum. This can be alleviated by immunoprecipitating the antibody:antigen complex before detection, or precipitation using soluble Tie2. These methods result in a clean, strong signal. Both Ang-1 and Ang-2 proteins have predicted MW of 57 kDa and appear on blots close to predicted MW. Additional bands may be seen at approx. 75 kDa which represent highly glycosylated forms of the protein.

Tested
Tested

Species
Human
Dilution info
1/200 - 1/800
Notes

-

Expected
Expected

Species
Mouse, Pig
Dilution info
Use at an assay dependent concentration.
Notes

-

Expected
Expected

Species
Human
Dilution info
1/5000 - 1/25000
Notes

-

Species
Mouse
Dilution info
1/5000 - 1/25000
Notes

-

Species
Pig
Dilution info
1/5000 - 1/25000
Notes

-

Expected
Expected

Species
Human, Mouse, Pig
Dilution info
Use at an assay dependent concentration.
Notes

-

Associated Products

Select an associated product type

3 products for Alternative Product

Target data

Function

Binds and activates TEK/TIE2 receptor by inducing its dimerization and tyrosine phosphorylation. Plays an important role in the regulation of angiogenesis, endothelial cell survival, proliferation, migration, adhesion and cell spreading, reorganization of the actin cytoskeleton, but also maintenance of vascular quiescence. Required for normal angiogenesis and heart development during embryogenesis. After birth, activates or inhibits angiogenesis, depending on the context. Inhibits angiogenesis and promotes vascular stability in quiescent vessels, where endothelial cells have tight contacts. In quiescent vessels, ANGPT1 oligomers recruit TEK to cell-cell contacts, forming complexes with TEK molecules from adjoining cells, and this leads to preferential activation of phosphatidylinositol 3-kinase and the AKT1 signaling cascades. In migrating endothelial cells that lack cell-cell adhesions, ANGT1 recruits TEK to contacts with the extracellular matrix, leading to the formation of focal adhesion complexes, activation of PTK2/FAK and of the downstream kinases MAPK1/ERK2 and MAPK3/ERK1, and ultimately to the stimulation of sprouting angiogenesis. Mediates blood vessel maturation/stability. Implicated in endothelial developmental processes later and distinct from that of VEGF. Appears to play a crucial role in mediating reciprocal interactions between the endothelium and surrounding matrix and mesenchyme.

Alternative names

Recommended products

Rabbit Polyclonal Angiopoietin 1 antibody. Suitable for WB, IHC-P, ELISA, ICC/IF and reacts with Human, Mouse, Pig samples. Cited in 56 publications. Immunogen corresponding to Synthetic Peptide within Mouse Angpt1 aa 1-50.

Key facts

Isotype
IgG
Form
Liquid
Clonality
Polyclonal
Immunogen
  • Synthetic Peptide within Mouse Angpt1 aa 1-50. The exact immunogen used to generate this antibody is proprietary information. Database link O08538
Purity
Whole antiserum
Specificity

Anti-Angiopoietin 1 is directed against mouse angiopoietin-1 and shows no reactivity with mouse angiopoietin-2. This reagent cross-reacts with human angiopoietin 1. Partially cross reactivity is noted with human angiopoietin 2.

Concentration
Loading...
Purification notes

his product was prepared from monospecific antiserum by a delipidation and defibrination.

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Notes

Angiopoeitin-1 (Ang-1) and Antiopoietin-2 (Ang2) are important for development of the endothelium, by regulating tyrosine phosphorylation of the membrane receptor Tie-2/Tek. Ang-1 binding to Tie-2/Tek causes phosphorylation of the receptor. Ang-2 competes for this binding, and thus blocks receptor phosphorylation. Ang-1 has potential fibrinogen-like domain at the carboxy terminus and coiled-coil regions in the amino terminus. Ang-1 is prominently expressed in the myocardium of atrium and ventricle, mesenchymal and smooth muscle cells surrounding most blood vessels, and lung. In the adult, ANG-1 is also expressed in the heart and liver. To our knowledge, this is the first time that an Ang antibody recognises a band above 55 kD. This antibody (and the ang-2 antibody, Anti-Angiopoietin 2/ANG2 antibody ab8452) give a band at 75 kD which resembles the original size, because these are soluble highly glycosylated proteins, which should run higher than the calculated molecular weight of 55 kD.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

Angiopoietin 1 also known as Ang1 or Angpt1 is a protein important to the vascular system with a molecular mass of around 70 kDa. It is expressed widely in endothelial cells and fibroblasts. Angiopoietin 1 functions mechanically to bind the Tie2 receptor triggering signaling pathways that regulate blood vessel maturation and stability. This interaction is important for the development and maintenance of the blood vessel network.

Biological function summary

Angiopoietin 1 supports the structural integrity of blood vessels by interacting with the Tie2 receptor as part of a signaling complex. It helps prevent vascular leak and promotes endothelial cell survival migration and adhesion. By playing such roles Angiopoietin 1 is fundamental for maintaining vascular homeostasis and facilitating proper blood flow throughout the body. It also influences the immune response by modulating endothelial functions.

Pathways

Angiopoietin 1's involvement is most notable within the PI3K/AKT pathway and the MAPK pathway which are important for signaling cell survival and growth. These pathways work closely with other proteins such as VEGF (Vascular Endothelial Growth Factor) in angiogenesis and vascular remodeling. Angiopoietin 1 interacts with its related pathways to ensure that blood vessels remain functional and adaptive to physiological changes.

Associated diseases and disorders

Angiopoietin 1 plays significant roles in cardiovascular diseases like atherosclerosis and diabetic vascular complications. Its dysregulation can lead to abnormalities in vascular maintenance and repair. There is also an association between Angiopoietin 1 and proteins like VEGF in cancer as both have roles in tumor angiogenesis. Understanding Angiopoietin 1's function could provide insights into therapeutic strategies for these conditions.

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2 product images

  • Western blot - Anti-Angiopoietin 1 antibody (ab8451), expandable thumbnail
    This image is courtesy of Marion Scharpfenecker 2002

    Western blot - Anti-Angiopoietin 1 antibody (ab8451)

    Supernatants of mouse-angiopoietin-expressing endothelial cells.

    Lane 1 - wt endothelial cell
    Lane 2 - mouse Ang-1 (clone 1-8) expressing cells
    Lane 3 - mouse Ang-1 (clone 1-15) expressing cells
    Lane 4 - mouse Ang-2 (clone 2-9) expressing cells

    All lanes: Western blot - Anti-Angiopoietin 1 antibody (ab8451)

    Predicted band size: 57 kDa

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Angiopoietin 1 antibody (ab8451), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Angiopoietin 1 antibody (ab8451)

    ab8451 was diluted 1:500 to detect Angiopoietin 1 in human lung tissue. Tissue was formalin fixed and paraffin embedded. No pre-treatment of sample was required. The image shows the localization of antibody as the precipitated red signal, with a hematoxylin purple nuclear counter stain.

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