Cyclotraxin B

Cyclotraxin B is a BBB-penetrable and selective TrkB inhibitor. Cyclotraxin B inhibits BDNF-induced TrkB activity in a non-competitive manner, with an IC50 of 0.30 nM. Cyclotraxin B has analgesic and anxiolytic effects[1][2][3].

Product Specifications

CAS Number

[1203586-72-4]

UNSPSC

12352209

Target

P38 MAPK; Trk Receptor

Type

Peptides

Related Pathways

MAPK/ERK Pathway; Neuronal Signaling; Protein Tyrosine Kinase/RTK

Applications

Neuroscience-Neuromodulation

Field of Research

Neurological Disease

Assay Protocol

https://www.medchemexpress.com/cyclotraxin-b.html

Purity

99.78

Solubility

H2O : 100 mg/mL (ultrasonic)

Smiles

O=C1N2[C@](CCC2)([H])C(N[C@H](C(NCC(N[C@H](C(N[C@@](C(N[C@H](C(N[C@H](C(NCC(N[C@@H](CSSC[C@@H](C(N[C@H]1CC(N)=O)=O)N)C(O)=O)=O)=O)CCC(O)=O)=O)CCCCN)=O)([H])[C@H](O)C)=O)CC3=CC=C(C=C3)O)=O)=O)CCSC)=O

Molecular Formula

C48H73N13O17S3

Molecular Weight

1200.37

References & Citations

[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.|[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.|[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.