Thermo Fisher Scientific Delta-4 Polyclonal Antibody

Applications

Tested Dilution

Publications

Western Blot (WB)

1:500- 1:2,000

-

Immunohistochemistry (Paraffin) (IHC (P))

10-20 µg/mL

-

ELISA (ELISA)

1:10,000-1:50,000

-

Immunoprecipitation (IP)

1:500-1:2,500

-

Product Specifications

Species Reactivity

Human

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

Anti-DELTA-4 antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to an internal region of Human DELTA-4.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

Affinity chromatography

Storage buffer

0.02M potassium phosphate, pH 7.2, with 0.15M NaCl

Contains

0.01% sodium azide

Storage conditions

-20° C, Avoid Freeze/Thaw Cycles

Shipping conditions

Ambient (domestic); Wet ice (international)

Product Specific Information

Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.

DELTA-4 affinity purified antibody is directed against human DELTA-4. A BLAST analysis was used to suggest reactivity with this protein from human based on 100% homology for the immunogen sequence. However, cross reactivity is expected with mouse, rat and chimpanzee DELTA-4 based on a 91% homology to the core 12 amino acid sequence within the 14 amino acid immunogen sequence. Cross reactivity with DELTA-4 homologues from other sources has not been determined.

Target Information

Delta-like ligand 4 (DLL4), also know as Delta-4, is a homologue of the Drosophila delta protein, and functions as a transmembrane bound ligand to the notch receptor Notch1. DLL4 is expressed in the vasculature and plays a critical role in vascular development. It is induced by vascular endothelial growth factor (VEGF), as a negative feedback regulator to regulate angiogenic sprouting and promote the formulation of a differentiated vascular network. DLL4 has been found to be strongly expressed in tumor vessels of clear-cell renal tumors and bladder cancer, and inhibition of DLL4 results in increased vascular proliferation but defective maturation. This in turn leads to a decrease in tumor growth, with no apparent toxicity.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.