Human Notch-3 Antibody

Catalog # Availability Size / Price Qty
AF1559
AF1559-SP
Product Details
Citations (2)
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Human Notch-3 Antibody Summary

Species Reactivity
Human
Specificity
Detects human Notch-3 in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse Notch-3 is observed and less than 5% cross-reactivity with recombinant human (rh) Notch-1 and rhNotch-2 is observed.
Source
Polyclonal Sheep IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Notch-3
Ala40-Glu467
Accession # Q9UM47
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human Notch‑3 Fc Chimera, aa 40-467 (Catalog # 1559-NT)
Blockade of Receptor-ligand Interaction
In a functional ELISA, 1-3 µg/mL of this antibody will block 50% of the binding of 250 ng/mL of Recombinant Rat Jagged 1 Fc Chimera (Catalog # 599-JG) to immobilized Recombinant Human Notch-3 Fc Chimera (Catalog # 1559-NT) coated at 5 µg/mL (100 µL/well). At 10 μg/mL, this antibody will block >90% 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.

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
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: Notch-3

Human Notch-3 is part of the Notch family of type I transmembrane glycoproteins involved in a number of early-event developmental processes (1). The extracellular domain of Notch receptors interact with the extracellular domain of transmembrane ligands Jagged, Delta, and Serrate expressed on the surface of a neighboring cell. In both vertebrates and invertebrates, Notch signaling is important for specifying cell fates and for defining boundaries between different cell types. The Notch molecule is synthesized as a 2321amino acid (aa) precursor that contains an 39 aa signal sequence, a 1603 aa extracellular region, a 21aa transmembrane (TM) segment and a 658 aa cytoplasmic domain. The large Notch extracellular domain has 34 EGF-like repeats followed by three notch/Lin-12 repeats (LNR) (2). The 11th and 12th EGF-like repeats of Notch have been shown to be both necessary and sufficient for binding the ligands Serrate and Delta, in Drosophila (3). Notch-3 has the same biochemical mechanism of signal tranduction as Notch-1, where a series of cleavage events result in the release of the Notch intracellular domain (NICD). NICD translocates into the nucleus and initiates transcription of Notch-responsive genes (4). Thus, Notch acts as both a ligand-binding receptor and a nuclear factor that regulates transcription.

Mutations in Notch-3 in humans cause an autosomal dominant condition called CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy). This disorder is characterized by recurrent ischemic strokes at an early age without any underlying vascular risk and progressive dementia. Nearly all mutations leading to this disorder are clustered in the first 5 EGF repeats of the Notch-3 gene (5). Human Notch-3 shows 90% aa identity to mouse Notch-3 over the entire protein.

References
  1. Weinmaster, G. (2000) Curr. Opin. Genet. Dev. 10:363.
  2. Joutel, A. et al. (1996) Nature 383:707.
  3. Rebay, I. et al. (1991) Cell 67:687.
  4. Mizutani, T. et al. (2001) Proc. Natl. Acad. Sci. USA 98:9026.
  5. Joutel, A. and E. Tounier-Lasserve (1998) Sem Cell & Dev Biol. 9:619.
Entrez Gene IDs
4854 (Human); 18131 (Mouse)
Alternate Names
CADASIL; CASILneurogenic locus notch homolog protein 3; Notch (Drosophila) homolog 3; notch 3Notch homolog 3 (Drosophila); Notch homolog 3; Notch3; Notch-3

Product Datasheets

Citations for Human Notch-3 Antibody

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.

2 Citations: Showing 1 - 2
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  1. Prolyl-isomerase Pin1 controls Notch3 protein expression and regulates T-ALL progression
    Oncogene, 2016;35(36):4741-51.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neut
  2. Notch3 activation modulates cell growth behaviour and cross-talk to Wnt/TCF signalling pathway.
    Authors: Wang T, Holt CM, Xu C, Ridley C, P O Jones R, Baron M, Trump D
    Cell. Signal., 2007;19(12):2458-67.
    Species: Human
    Sample Types: Cell Lysates
    Applications: WB

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