Recombinant Mouse NT-4 Protein


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Reactivity MuSpecies Glossary
Applications Bioactivity

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Recombinant Mouse NT-4 Protein Summary

Details of Functionality
Measured in a cell proliferation assay using BaF mouse pro-B cells transfected with TrkB. The ED50 for this effect is 2-8 ng/mL.
Mouse myeloma cell line, NS0-derived mouse NT-4 protein
Accession #
N-terminal Sequence
Protein/Peptide Type
Recombinant Proteins
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<1.0 EU per 1 μg of the protein by the LAL method.


Theoretical MW
14 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
14 kDa, reducing conditions
Read Publication using
3236-N4 in the following applications:

Packaging, Storage & Formulations

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.
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.


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

Alternate Names for Recombinant Mouse NT-4 Protein

  • GLC10
  • GLC1O
  • neurotrophic factor 4
  • neurotrophic factor 5
  • neurotrophin 4
  • neurotrophin 5 (neurotrophin 4/5)
  • neurotrophin-4
  • neurotrophin-5
  • Neutrophic factor 4
  • NT4
  • NT-4
  • NT-4/5
  • NT-5
  • NTF4
  • NTF5
  • NTF5NT5


Neurotrophin-4 (NT-4), also known as NT-5, is a member of the NGF family of neuronal and epithelial growth factors. Neurotrophins have six conserved cysteine residues that are involved in the formation of three disulfide bonds (1 - 3). The mouse NT-4 cDNA encodes a 209 amino acid (aa) precursor that includes a 21 aa signal sequence, a 58 aa propeptide, and a 130 aa mature protein (4, 5). Mouse NT-4 is synthesized as a 28 kDa prepropeptide that is proteolytically processed to generate the mature protein. Mature mouse NT-4 shares 35 - 40% aa sequence identity with mouse beta-NGF, BDNF, and NT-3. It shares 91% and 99% aa sequence identity with human and rat NT-4/5, respectively. The mature protein is secreted as a homodimer and can also form heterodimers with BDNF or NT-3 (6). NT-4 binds and induces receptor dimerization and activation of TrkB (4, 7). NT-4 promotes the development and survival of selected peripheral and CNS neurons (8 - 10). BDNF, which also activates TrkB, overlaps with many but not all NT-4 functions, a distinction that is likely due to differences in expression patterns (8 - 10). NT-4 induced TrkB signaling augments NMDA receptor activity and increases neuronal sensitivity to excitotoxic cell death (11). It also promotes the proliferation of keratinocytes and accelerates hair follicle regression during the follicular cycle (12, 13). NT-4 is secreted by activated T cells and granulocytes at sites of inflammation where it contributes to tissue regeneration (14 - 16).

  1. Lessmann, V. et al. (2003) Prog. Neurobiol. 69:341.
  2. Tabakman, R. et al. (2004) Prog. Brain Res. 146:387.
  3. Botchkarev, V.A. et al. (2004) Prog. Brain Res. 146:493.
  4. Ip, N.Y. et al. (1992) Proc. Natl. Acad. Sci. 89:3060.
  5. Berkemeier, L.R. et al. (1991) Neuron 7:857.
  6. Radziejewski, C. and R.C. Robinson (1993) Biochemistry 32:13350.
  7. Vesa, J. et al. (2000) J. Biol. Chem. 275:24414.
  8. Davies, A.M. et al. (1993) J. Neurosci. 13:4961.
  9. Stucky, C.L. et al. (1998) J. Neurosci. 18:7040.
  10. Fan, G. et al. (2000) Nat. Neurosci. 3:350.
  11. Choi, S.Y. et al. (2004) J. Neurochem. 88:708.
  12. Botchkarev, V.A. et al. (1999) Lab. Invest. 79:557.
  13. Botchkarev, V.A. et al. (1999) FASEB J. 13:395.
  14. Laurenzi, M.A. et al. (1998) J. Leukoc. Biol. 64:228.
  15. Moalem, G. et al. (2000) J. Autoimmun. 15:331.
  16. Nassenstein, C. et al. (2003) J. Exp. Med. 198:455.

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Publications for NT-4 (3236-N4)(1)

We have publications tested in 1 confirmed species: Mouse.

We have publications tested in 1 application: Bioassay.

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