Cyclotraxin B TFA

Cat. No.: HY-P1178A: FAQs
Data Sheet Handling Instructions Technical Support

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.

Custom Peptide Synthesis

Cyclotraxin B TFA Chemical Structure

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MOQ		Minimum order quantity
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100 mg		Get quote
250 mg		Get quote
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This product is a controlled substance and not for sale in your territory.

Other Forms of Cyclotraxin B TFA:

Cyclotraxin B Get quote

3 Publications Citing Use of MCE Cyclotraxin B TFA

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•Related Small Molecules:

•Related Proteins:

View All Trk Receptor Isoform Specific Products:

View All Isoforms

TrkA TrkB TrkC Trk

Biological Activity
Purity & Documentation
References
Customer Review

Description

IC₅₀ & Target

TrkB

Molecular Weight

1314.39

Formula

C₅₀H₇₄F₃N₁₃O₁₉S₃

Sequence Shortening

CNPMGYTKEGC (Disulfide bridge:Cys1-Cys11)

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent & Solubility

In Vitro:

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

Handling Instructions (2659 KB)

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]