Recombinant Mouse Notch-2 Fc Chimera Protein, CF

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Recombinant Mouse Notch-2 Fc Chimera Protein, CF Summary

Product Specifications

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
Measured by its binding ability in a functional ELISA. Immobilized rmNotch-2/Fc Chimera at 5 µg/mL (100 µL/well) can bind rrJagged-1/Fc Chimera with an apparent KD < 5 nM.
Chinese Hamster Ovary cell line, CHO-derived mouse Notch-2 protein
Mouse Notch-2
(Leu26 - Val528)
Accession #NP_035058
(Glu98 - Lys330)
N-terminus C-terminus
Accession #
N-terminal Sequence
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
80.8 kDa (monomer)
105-120 kDa, reducing conditions

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Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.


Formulation Lyophilized from a 0.2 μm filtered solution in PBS and EDTA.
Reconstitution Reconstitute at 250 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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Background: Notch-2

Notch-2 is a 300 kDa type I transmembrane glycoprotein that is one of four Notch homologues involved in development (1 - 3). Although Notch proteins are structurally and functionally similar, deletion of either Notch-1 or Notch-2 is lethal, demonstrating that not all functions overlap (4, 5). Mice with hypomorphic Notch-2 show defects in development of kidney, heart and eye (6). Notch-2 is upregulated in mature B cells and is critical for differentiation to splenic marginal zone B cells (7). Notch-2 is also preferentially expressed in choroid plexus epithelia and neuronal precursors (8, 9). Mouse Notch-2 is synthesized as a 2470 amino acid (aa) precursor that contains a 25 aa signal sequence, a 1652 aa extracellular domain (ECD), a 21 aa transmembrane (TM) segment, and a 772 aa cytoplasmic domain. The ECD contains 35 EGF-like repeats and three Lin-12/Notch repeats, while the cytoplasmic region shows six ankyrin repeats, a glutamine-rich domain and a PEST sequence. Binding of ligands, including Jagged and Delta-like molecules, has been localized to the 11th and 12th EGF-like repeats of human Notch-1 (corresponding to aa 413 - 492 in mouse Notch-2) (10). Notch receptors undergo post-translational furin-type proteolytic cleavage (11). This forms a heterodimer through the interaction of a hydrophobic area in the ligand-binding extracellular region with the TM/cytoplasmic portion (11, 12). Upon ligand binding, additional sequential proteolysis by TNF-converting enzyme (ADAM-17) 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 (13). Mouse Notch-2 ECD (aa 26 - 528) shares 93%, 96%, 92% and 92% aa identity with the corresponding regions of human, rat, canine, and bovine Notch-2, respectively. This region also exhibits 55 - 58% aa identity with mouse Notch-1 and Notch-3.

  1. Lardelli, M. and U. Lendahl (1993) Exp. Cell Res. 204:364.
  2. Dumortier, A. et al. (2005) Int. J. Hematol. 82:277.
  3. Yoon, K. and N. Gaiano (2005) Nat. Neurosci. 8:709.
  4. Hamada, Y. et al. (1999) Development 126:3415.
  5. Shimizu, K. et al. (2002) Biochem. Biophys. Res. Commun. 291:775.
  6. McCright, B. et al. (2001) Development 128:491.
  7. Saito, T. et al. (2003) Immunity 18:675.
  8. Irvin, D. K. et al. (2001) J. Comp. Neurol. 436:167.
  9. Solecki, D. J. et al. (2001) Neuron 31:557.
  10. Hambleton, S. et al. (2004) Structure 12:2173.
  11. Logeat, F. et al. (1998) Proc. Natl. Acad. Sci. USA 95:8108.
  12. Sanchez-Irizarry, C. et al. (2004) Mol. Cell. Biol. 24:9265.
  13. Mumm, J.S. and R. Kopan (2000) Dev. Biol. 228:151.
Entrez Gene IDs
4853 (Human); 29492 (Rat)
Alternate Names
AGS2; hN2; neurogenic locus notch homolog protein 2; Notch (Drosophila) homolog 2; notch 2Notch homolog 2 (Drosophila); Notch homolog 2; Notch2; Notch-2


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