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EphB4 Antibody (VEB4-7E4)

Novus Biologicals, part of Bio-Techne | Catalog # NBP1-49607

Novus Biologicals, part of Bio-Techne
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NBP1-49607-0.05mg

Key Product Details

Species Reactivity

Validated:

Mouse

Cited:

Mouse

Applications

Validated:

Flow Cytometry, Immunoassay, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Western Blot

Cited:

Immunocytochemistry/ Immunofluorescence

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2A Clone # VEB4-7E4

Concentration

0.1 mg/ml

Product Specifications

Immunogen

Mouse Tyrosine-protein kinase receptor HTK

Specificity

Mouse Ephrin Type-B Receptor 4

Clonality

Monoclonal

Host

Rat

Isotype

IgG2A

Applications for EphB4 Antibody (VEB4-7E4)

Application
Recommended Usage

Flow Cytometry

1:10-1:1000

Immunocytochemistry/ Immunofluorescence

1:10-1:500

Immunohistochemistry

1:10-1:500

Immunohistochemistry-Frozen

1:10-1:500

Western Blot

1:100-1:2000
Application Notes
It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.

The monoclonal antibody VEB4-7E4 marks venous endothelial cells, but not arterial endothelial cells in B16 melanoma cells.

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

PBS, containing 0.1% BSA

Preservative

0.02% Sodium Azide

Concentration

0.1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C.

Background: EphB4

The monoclonal antibody VEB4-7E4 recognizes mouse Ephrin type-B receptor 4 (EphB4), an ~110 kD protein. Erythropoietin-producing human hepatocellular carcinoma (Eph) receptors and ephrins are membrane proteins. They are classified into 2 broad subclasses, namely A and B, according to structural homologies and binding specificities. Eph receptors are tyrosine kinases, which autophosphorylate upon binding to their cognate ephrin ligands. Eph receptors and ephrins are frequently expressed in reciprocal patterns that correlate with cellular boundaries during embryonic development. The interaction between EphB4 and its ligand, Ephrin-B2, plays an important role in cell-cell, cell-extracellular matrix interactions as well as in cell migration, adhesion and proliferation. During the early stages of vascular development, EphB4 is specifically expressed in venous endothelium, whereas Ephrin-B2 is expressed in arterial endothelium. In mouse embryo's, EphB4 and Ephrin-B2 are essential for embryonic heart development and angiogenesis. In adult microcirculation, EphB4 is not a ubiquitous marker of arterial/venous polarity, but is expressed along both venules and arterioles. Furthermore, EphB4 is upregulated by endothelial cells along blind-ended capillary sprouts versus connecting capillaries. As such, EphB4 is thought to play a role in the patterning of new vessels during angiogenesis. EphB4 is also expressed in a variety of tumor cells, like gastrointestinal, prostate, bladder, breast, liver, lung and ovarian cancers, as well as leukemia, mesothelioma, malignant breast tumors and melanoma. Reduction of EphB4 activity accelerated tumorigenesis in colon and rectum. In head and neck squamous cell carcinoma and endometrial carcinoma, overexpression of EphB4 is inversely related to a poor prognosis. However, in mesothelioma, up-regulation of EphB4 resulted in growth of the tumor. Besides the essential expression of EphB4, coexpression of other EphB4 family members or EphB-ligands may affect tumor cell viability and proliferation as well.

Long Name

Eph Receptor B4

Alternate Names

Htk, Mdk2, Myk1, Tyro11

Gene Symbol

EPHB4

Additional EphB4 Products

Product Documents for EphB4 Antibody (VEB4-7E4)

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for EphB4 Antibody (VEB4-7E4)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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