Recombinant Human NT-3 Protein
R&D Systems, part of Bio-Techne | Catalog # 267-N3
11563-N3, a new product from mammalian cell line is available
Key Product Details
Product Specifications
Source
Spodoptera frugiperda, Sf 21 (baculovirus)-derived human NT-3 protein
Tyr139-Thr257 (K196R)
Tyr139-Thr257 (K196R)
Purity
>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
Tyr139
Predicted Molecular Mass
13.7 kDa
Activity
Measured in a cell proliferation assay using BaF mouse pro-B cells transfected with TrkB.
The ED50 for this effect is 4.00-40.0 ng/mL.
The ED50 for this effect is 4.00-40.0 ng/mL.
Formulation, Preparation and Storage
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.
Carrier: 267-N3
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 50 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| 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.
|
Carrier Free: 267-N3/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute 5 µg vials at 50 µg/mL in sterile PBS. Reconstitute 25 µg or larger vials at 100 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.
|
Background: NT-3
Neurotrophin-3 (NT-3) is a member of the NGF family of neurotrophic factors (also named neurotrophins) that are required for the differentiation and survival of specific neuronal subpopulations in both the central as well as the peripheral nervous systems. The neurotrophin family is comprised of at least four proteins including NGF, BDNF, NT-3, and NT-4/5. These secreted cytokines are synthesized as prepropeptides that are proteolytically processed to generate the mature proteins. All neurotrophins have six conserved cysteine residues that are involved in the formation of three disulfide bonds and all share approximately 55% sequence identity at the amino acid level. Similarly to NGF, bioactive NT-3 is predicted to be a non-covalently linked homodimer.
The NT-3 cDNA encodes a 257 amino acid residue precursor protein with a signal peptide and a proprotein that are cleaved to yield the 119 amino acid residue mature NT-3. The amino acid sequence of mature NT-3 is identical in human, mouse and rat. NT-3 transcripts have been detected in the cerebellum, hippocampus, placenta, heart, skin, and skeletal muscle. NT-3 primarily activates the TrkC tyrosine kinase receptor. In addition, NT-3 can activate Trk and TrkB kinase receptors in certain cell systems. NT-3 can also bind with low affinity to the low affinity NGF receptor.
References
- Eide, F.F. et al. (1993) Exp. Neurol. 121:200.
- Snider, W.D. (1994) Cell 77:627.
- Barbacid, M. (1994) J. Neurobiol. 25:1386.
Long Name
Neurotrophin 3
Alternate Names
HDNF, NGF2, NT3, NTF3
Entrez Gene IDs
4908 (Human)
Gene Symbol
NTF3
UniProt
Additional NT-3 Products
Product Documents for Recombinant Human NT-3 Protein
Product Specific Notices for Recombinant Human NT-3 Protein
For research use only
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