Product Pathways - Development
Notch3 (D11B8) Rabbit mAb #5276
|W IP||H||Endogenous||90, 270||Rabbit IgG|
Reactivity Key: H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Specificity / Sensitivity
Notch3 (D11B8) Rabbit mAb detects endogenous levels of total Notch3 protein. The antibody recognizes both full-length (FL) Notch3 at 270 kDa and a truncated protein (NTM) containing a short extracellular region, the transmembrane domain and the intracellular region at 90 kDa.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Glu2312 of human Notch3 protein.
Notch proteins (Notch1-4) are a family of transmembrane receptors that play important roles in development and the determination of cell fate (1). Mature Notch receptors are processed and assembled as heterodimeric proteins, with each dimer comprised of a large extracellular ligand-binding domain, a single-pass transmembrane domain, and a smaller cytoplasmic subunit (Notch intracellular domain, NICD) (2). Binding of Notch receptors to ligands of the Delta-Serrate-Lag2 (DSL) family triggers heterodimer dissociation, exposing the receptors to proteolytic cleavages; these result in release of the NICD, which translocates to the nucleus and activates transcription of downstream target genes (3-4).
Notch3 is a member of the Notch family and is processed similar to Notch1 (5). It is expressed primarily in arterial smooth muscle cells (SMC). Mutations altering the number of cysteine residues in the Notch3 extracellular region are associated with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), a hereditary angiopathy leading to strokes and dementia in adults (6-8). Recent studies indicate that Notch3 is overexpressed in many types of cancer (9-11).
- Artavanis-Tsakonas, S. et al. (1999) Science 284, 770-6.
- Chan, Y.M. and Jan, Y.N. (1998) Cell 94, 423-6.
- Schroeter, E.H. et al. (1998) Nature 393, 382-6.
- Rand, M.D. et al. (2000) Mol Cell Biol 20, 1825-35.
- Baron, M. (2003) Semin Cell Dev Biol 14, 113-9.
- Kalimo, H. et al. (2002) Brain Pathol 12, 371-84.
- Karlström, H. et al. (2002) Proc Natl Acad Sci U S A 99, 17119-24.
- Monet, M. et al. (2007) Hum Mol Genet 16, 982-92.
- Park, J.T. et al. (2006) Cancer Res 66, 6312-8.
- Gramantieri, L. et al. (2007) Liver Int 27, 997-1007.
- Yamaguchi, N. et al. (2008) Cancer Res 68, 1881-8.
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For Research Use Only. Not For Use In Diagnostic Procedures.