Recombinant Human NT-3 Protein, CF


1 μg/lane of Recombinant Human NT-3 was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 14 kDa.
Recombinant Human NT-3 (Catalog #267‑N3/CF) stimulates cell proliferation in the BaF mouse pro-B cell line transfected with TrkB. The ED50 for this effect is 1-10 ng/mL.

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Reactivity HuSpecies Glossary
Applications Bioactivity

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Recombinant Human NT-3 Protein, CF 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 1-10 ng/mL.
The specific activity of recombinant human NT-3 is approximately 2082 U/μg, which is calibrated against Recombinant Human NT-3 Standard (NIBSC code: 98/718).
Spodoptera frugiperda, Sf 21 (baculovirus)-derived human NT-3 protein
Tyr139-Thr257 (K196R)
Accession #
N-terminal Sequence
Protein/Peptide Type
Recombinant Proteins
>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.


Theoretical MW
13.7 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.
Read Publications using
267-N3/CF 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.
>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute 5 µg vials at 50 µg/mL in sterile PBS. Reconstitute 25 µg or larger vials at 100 µg/mL in sterile PBS.


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

Alternate Names for Recombinant Human NT-3 Protein, CF

  • 3-nucleotidase
  • NT3
  • NT-3
  • NTF3


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.

  1. Eide, F.F. et al. (1993) Exp. Neurol. 121:200.
  2. Snider, W.D. (1994) Cell 77:627.
  3. Barbacid, M. (1994) J. Neurobiol. 25:1386.

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Publications for xxxNT-3xxx (267-N3/CF)(35)

We have publications tested in 7 confirmed species: Human, Mouse, Rat, Canine, N/A, Primate, Primate - Callitrix jacchus (Common Marmoset).

We have publications tested in 4 applications: Bioassay, ELISA Standard, In Vivo, Neural Differentiation.

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Showing Publications 1 - 10 of 35. Show All 35 Publications.
Publications using 267-N3/CF Applications Species
N Tsuburaya, K Homma, T Higuchi, A Balia, H Yamakoshi, N Shibata, S Nakamura, H Nakagawa, SI Ikeda, N Umezawa, N Kato, S Yokoshima, M Shibuya, M Shimonishi, H Kojima, T Okabe, T Nagano, I Naguro, K Imamura, H Inoue, T Fujisawa, H Ichijo A small-molecule inhibitor of SOD1-Derlin-1 interaction ameliorates pathology in an ALS mouse model Nat Commun, 2018;9(1):2668. 2018 [PMID: 29991716] (Bioassay, Human) Bioassay Human
DR Gomez, LA Byers, M Nilsson, L Diao, J Wang, L Li, P Tong, M Hofstad, B Saigal, I Wistuba, N Kalhor, S Swisher, Y Fan, WK Hong, M Suraokar, C Behrens, C Moran, JV Heymach Integrative proteomic and transcriptomic analysis provides evidence for TrkB (NTRK2) as a therapeutic target in combination with tyrosine kinase inhibitors for non-small cell lung cancer Oncotarget, 2018;9(18):14268-14284. 2018 [PMID: 29581842] (Bioassay, Human) Bioassay Human
P Göttle, A Manousi, D Kremer, L Reiche, HP Hartung, P Küry Teriflunomide promotes oligodendroglial differentiation and myelination J Neuroinflammation, 2018;15(1):76. 2018 [PMID: 29534752] (Bioassay, Rat) Bioassay Rat
N Avaliani, U Pfisterer, A Heuer, M Parmar, M Kokaia, M Andersson Directly Converted Human Fibroblasts Mature to Neurons and Show Long-Term Survival in Adult Rodent Hippocampus Stem Cells Int, 2017;2017(0):5718608. 2017 [PMID: 29317869] (Bioassay, Human) Bioassay Human
EA Newman, S Chukkapall, D Bashllari, TT Thomas, RA Van Noord, ER Lawlor, MJ Hoenerhoff, AW Opipari, VP Opipari Alternative NHEJ pathway proteins as components of MYCN oncogenic activity in human neural crest stem cell differentiation: implications for neuroblastoma initiation Cell Death Dis, 2017;8(12):3208. 2017 [PMID: 29238067] (Bioassay, Human) Bioassay Human
T Ruetz, U Pfisterer, B Di Stefano, J Ashmore, M Beniazza, TV Tian, DF Kaemena, L Tosti, W Tan, JR Manning, E Chantzoura, DR Ottosson, S Collombet, A Johnsson, E Cohen, K Yusa, S Linnarsson, T Graf, M Parmar, K Kaji Constitutively Active SMAD2/3 Are Broad-Scope Potentiators of Transcription-Factor-Mediated Cellular Reprogramming Cell Stem Cell, 2017;0(0):. 2017 [PMID: 29174331] (Bioassay, Human) Bioassay Human
M Zhang, MH Jiang, DW Kim, W Ahn, E Chung, Y Son, G Chi Comparative Analysis of the Cell Fates of Induced Schwann Cells from Subcutaneous Fat Tissue and Na�ve Schwann Cells in the Sciatic Nerve Injury Model Biomed Res Int, 2017;2017(0):1252851. 2017 [PMID: 28713821] (Bioassay, Rat) Bioassay Rat
J Drouin-Oue, S Lau, PL Brattås, D Rylander O, K Pircs, DA Grassi, LM Collins, R Vuono, A Andersson, G Westergren, C Graff, L Minthon, H Toresson, RA Barker, J Jakobsson, M Parmar REST suppression mediates neural conversion of adult human fibroblasts via microRNA-dependent and -independent pathways EMBO Mol Med, 2017;9(8):1117-1131. 2017 [PMID: 28646119] (Bioassay, Human) Bioassay Human
W Wu, XL Wu, YQ Ji, Z Gao Differentiation of nestin?negative human hair follicle outer root sheath cells into neurons in�vitro Mol Med Rep, 2017;0(0):. 2017 [PMID: 28534946] (Bioassay, Human) Bioassay Human
T Nakazawa, M Kikuchi, M Ishikawa, H Yamamori, K Nagayasu, T Matsumoto, M Fujimoto, Y Yasuda, M Fujiwara, S Okada, K Matsumura, A Kasai, A Hayata-Tak, N Shintani, S Numata, K Takuma, W Akamatsu, H Okano, A Nakaya, H Hashimoto, R Hashimoto Differential gene expression profiles in neurons generated from lymphoblastoid B-cell line-derived iPS cells from monozygotic twin cases with treatment-resistant schizophrenia and discordant responses to clozapine Schizophr. Res., 2017;181(0):75-82. 2017 [PMID: 28277309] (Bioassay, Human) Bioassay Human
Show All 35 Publications.

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Gene Symbol NTF3