delta-Like 4 (DLL4) antibody

Antigen: delta-Like 4 (DLL4)

Synonyms: hdelta2, MGC126344, zgc:136596, si:ch211-244p18.5

Clonality: Polyclonal

Host: Rabbit

Reactivity: Human, Cow (Bovine), Mouse (Murine), Rat (Rattus)

Application: Immunohistochemistry (IHC), ELISA, Western Blotting (WB), Immunoprecipitation (IP)

Catalog no.: ABIN129625

Additional Information

Alternative name: DELTA-4

Gene ID: NP_061947

Swiss-Prot: Q9NR61

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

Format: Liquid (sterile filtered)

Description: DELTA-4 (also called delta 4 precursor, delta ligand 4 precursor, Delta-like protein 4, DLL4, Drosophila Delta homolog 4 and notch ligand DLL4 precursor) is a homolog of the Drosophila delta protein. The delta gene family encodes Notch ligands that are characterized by a DSL domain, EGF repeats, and a transmembrane domain. DELTA-4 plays a role in the Notch signaling pathway and activates Notch-1 and Notch-4. DELTA-4 is a membrane protein that is expressed in the vascular endothelium.

Specificity: This affinity purified antibody is directed against human DELTA-4. The product was affinity purified from monospecific antiserum by immunoaffinity chromatography. 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.

Application Details

Application Notes: Recommended Dilutions: ELISA 1:5,000 - 1:25,000 WESTERN BLOT 1:500 - 1:2,500 IMMUNOHISTOCHEMISTRY 10 ug/ml - 20 ug/ml OTHER APPLICATIONS User Optimized. Note: This affinity purified antibody has been tested for use in ELISA, immunohistochemistry and western blotting. Specific conditions for reactivity should be optimized by the end user. Expect a band approximately 74 kDa in size corresponding to DELTA-4 by western blotting in the appropriate cell lysate or extract.

Concentration: 1.5 mg/ml (by UV absorbance at 280 nm)

Buffer: Stabilizer: None. Preservative: 0.01% (w/v) Sodium Azide. Buffer: 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2.

Storage: Store vial at -20° C prior to opening. Dilute only prior to immediate use. For extended storage, aliquot contents and freeze at -20° C or below. Avoid cycles of freezing and thawing. Expiration date is one (1) year from date of opening.

Research Area: Cell Cycle, Neurology

Restrictions: For Research Use only

Images

Western blot using antibodies-online's Affinity Purified anti-Delta-4 antibody shows detection of a 74-kDa band corresponding to Delta-4 in a lysate prepared from mouse pancreatic tissue. Approximately 20 ug of lysate was run on SDS-PAGE and transferred onto nitrocellulose followed by reaction with a 1:500 dilution of anti-Delta-4 antibody. Detection occurred using a 1:5,000 dilution of HRP-labeled Goat anti-Rabbit IgG for 1 hour at room temperature. A chemiluminescence system was used for signal detection (Roche) using a 3 min exposure time.

Immunohistochemistry. antibodies-online's Affinity Purified anti-Delta-4 antibody was used at 20 ug/ml to detect Delta-4 in a variety of tissues including colon, liver, skeletal muscle, ovary, pancreas, prostate, testes, thymus, tonsil and uterus. In contrast to reported findings, no staining was observed in vascular tissue. This image shows Delta-4 staining of human ovary. Tissue was formalin-fixed and paraffin embedded. Personal Communication, Tina Roush, LifeSpanBiosciences, Seattle, WA.

Lung tissue stained with Delat-4 antibody and secondary antibody conjugated with hematoxylin

Publications

Publications: Zhang, Zeng, Zhang et al.: "Suppressor of cytokine signaling 3 promotes bone marrow cells to differentiate into CD8+ T lymphocytes in lung tissue via up-regulating Notch1 expression." in: Cancer research, Vol. 69, Issue 4, pp. 1578-86, 2009 (PubMed).

Indraccolo, Minuzzo, Masiero et al.: "Cross-talk between tumor and endothelial cells involving the Notch3-Dll4 interaction marks escape from tumor dormancy." in: Cancer research, Vol. 69, Issue 4, pp. 1314-23, 2009 (PubMed).