Notch-1 Antibody (433802) [Alexa Fluor® 594]

• Reactivity: Hu
• Applications: WB, ICC/IF
• Clone: 433802
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Alexa Fluor 594

Notch-1 Antibody (433802) [Alexa Fluor® 594] Summary

• Immunogen: E. coli-derived recombinant human Notch‑1
  Gly2428-Lys2556
  Accession # AAG33848
• Specificity: Detects human Notch-1 Intracellular Domain in Western blots. In Western blots, this antibody does not cross-react with the corresponding intracellular segments of recombinant human (rh) Notch-2, rhNotch-3, or rhNotch-4.
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Mouse
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Notch-1 Antibody (433802) [Alexa Fluor® 594]

• EC 2.1.2.11
• EC 3.4.21.68
• hN1
• Notch (Drosophila) homolog 1 (translocation-associated)
• notch 1Notch homolog 1, translocation-associated (Drosophila)
• Notch homolog 1, translocation-associated
• Notch1
• Notch-1
• TAN1
• TAN1neurogenic locus notch homolog protein 1
• Translocation-associated notch protein TAN-1

Background

Human Notch-1 is a 300 kDa type I transmembrane glycoprotein that is one of four human Notch homologues involved in developmental processes (1-3). Notch signaling is important for maintaining stem cells and inducing differentiation, especially in the nervous system and lymphoid tissues (2-4). Notch can specify binary cell fates; for example, promoting T- over B-cell development from a common precursor (2). More than 50% of human T-lineage acute lymphoblastic leukemia (T‑ALL) have activating mutations of Notch1 (1, 5). Human Notch-1 is synthesized as a 2556 amino acid (aa) precursor that contains an 18 aa signal sequence, a 1718 aa extracellular domain (ECD) with 36 EGF-like repeats and three Lin-12/Notch repeats (LNR), a 23 aa transmembrane (TM) segment and a 785 aa cytoplasmic domain containing six ankyrin repeats, a glutamine-rich domain and a PEST sequence. The 11^th and 12^th EGF-like repeats bind ligands including Jagged and Delta-like families in humans (6). O-fucosylation by Fringe family members at a site within this region can inhibit the interaction of Notch with Jagged ligands, thereby promoting Delta-like ligand interactions (7). Notch-1 receptor undergoes post-translational furin-type proteolytic cleavage, forming a heterodimer through interaction of a hydrophobic area C-terminal to the LNR on the 1647 aa ligand-binding extracellular region with the 891 aa transmembrane/cytoplasmic portion (8, 9). Upon ligand binding, additional sequential proteolysis by TNF-converting enzyme (ADAM17) and the presenilin-dependent gamma -secretase results in the release of the Notch intracellular domain (NICD) which translocates into the nucleus, activating transcription of Notch-responsive genes (10). Human Notch-1 ECD aa 19-526, including the first 13 EGF repeats, shows 91% aa identity with corresponding regions of mouse and rat, 89% with canine, and 79% with chicken Notch-1. This region also exhibits 60% aa identity with human Notch-2 and Notch-3.

Limitations

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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