Cyclotraxin B TFA
Based on 3 publication(s) in Google Scholar
Cyclotraxin B TFA is a BBB-penetrable and selective TrkB inhibitor. Cyclotraxin B TFA inhibits BDNF-induced TrkB activity in a non-competitive manner, with an IC50 of 0.30 nM. Cyclotraxin B TFA has analgesic and anxiolytic effects.
For research use only. We do not sell to patients.
- Formula: C50H74F3N13O19S3
- Molecular Weight:1314.39
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications Citing Use of MedChemExpress (MCE) Cyclotraxin B TFA
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Biological Activity
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TrkB |
Chemical Information
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Molecular Weight 1314.39
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Formula C50H74F3N13O19S3
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Sequence Shortening
CNPMGYTKEGC (Disulfide bridge:Cys1-Cys11)
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (3)
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Journal Impact Factor
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Most Recent
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Br J Pharmacol
Cyclic helix B peptide promotes random-pattern skin flap survival via TFE3-mediated enhancement of autophagy and reduction of ROS levels. [Abstract]2022 Jan;179(2):301-321. PMID: 34622942 -
Genes Brain Behav
Alteration of neural activity and neuroinflammatory factors in the insular cortex of mice with corneal neuropathic pain. [Abstract]2023 Apr;22(2):e12842. PMID: 36889983 -
J Mol Neurosci
2022 Dec;72(12):2497-2506. PMID: 36527597
Solvent & Solubility
H2O
Peptide Solubility and Storage Guidelines:
1. Calculate the length of the peptide.
2. Calculate the overall charge of the entire peptide according to the following table:
| Contents | Assign value | |
|---|---|---|
| Acidic amino acid | Asp (D), Glu (E), and the C-terminal -COOH. | -1 |
| Basic amino acid | Arg (R), Lys (K), His (H), and the N-terminal -NH2 | +1 |
| Neutral amino acid | Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) | 0 |
3. Recommended solution:
| Overall charge of peptide | Details |
|---|---|
| Negative (<0) |
1. Try to dissolve the peptide in water first. 2. If water fails, add NH4OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide. |
| Positive (>0) |
1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO. |
| Zero (=0) |
1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration. |
Purity & Documentation
References
[1]. Maxime Cazorla, et al. Cyclotraxin-B, the first highly potent and selective TrkB inhibitor, has anxiolytic properties in mice. PLoS One. 2010 Mar 19;5(3):e9777. [Content Brief]
[2]. Luis Constandil, et al. Cyclotraxin-B, a new TrkB antagonist, and glial blockade by propentofylline, equally prevent and reverse cold allodynia induced by BDNF or partial infraorbital nerve constriction in mice. J Pain. 2012 Jun;13(6):579-89. [Content Brief]
[3]. Michel M M Verheij, et al. Systemic Delivery of a Brain-Penetrant TrkB Antagonist Reduces Cocaine Self-Administration and Normalizes TrkB Signaling in the Nucleus Accumbens and Prefrontal Cortex. J Neurosci. 2016 Aug 3;36(31):8149-59. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)