ProTx-III

Catalog No.: A68617
Nav1.7 Inhibitor
ProTx-III is a potent and selective inhibitor of the voltage-gated sodium channel Nav1.7, exhibiting an IC50 of 2.1 nM. Derived from the venom of the Peruvian green velvet tarantula, this spider venom peptide features a characteristic inhibitor cystine knot (ICK) motif. ProTx-III plays a critical role in reversing pain responses and is instrumental in researching conditions such as chronic pain, epilepsy, and cardiac arrhythmias.
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5mg
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50mg
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Research use only. We do not sell to patients.

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Adooq Products cited in reputable paper
Science VOLUME 380, ISSUE 6663 (2023)
Science VOLUME 369, ISSUE 6510 (2020)
Science VOLUME 356, ISSUE 6336 (2017)
Cell Vol. 185 Issue 23 p4428-4447.e28
Cell Vol 177, Issue 7, p1933-1947.e25
Cell Vol 156, Issue 5, p857-1114
Nature Volume 622 Issue 7982 (2023)
Nature volume 620, pages890-897 (2023)
Nature volume 610, pages540-546 (2022)
Nature volume 588, pages83-88 (2020)
Nature volume 574, pages268-272 (2019)
Nature volume 573, pages539-545 (2019)
Nature volume 567, pages118-122 (2019)
Nature volume 551, pages639-643 (2017)
Nature volume 551, pages247-250 (2017)
Nature volume 548, pages356-360 (2017)
Nature volume 545, pages187-192 (2017)
Biological Activity
DescriptionProTx-III is a potent and selective inhibitor of the voltage-gated sodium channel Nav1.7, exhibiting an IC50 of 2.1 nM. Derived from the venom of the Peruvian green velvet tarantula, this spider venom peptide features a characteristic inhibitor cystine knot (ICK) motif. ProTx-III plays a critical role in reversing pain responses and is instrumental in researching conditions such as chronic pain, epilepsy, and cardiac arrhythmias.
Product Information
Catalog NumA68617
FormulaC162H246N52O43S6
Molecular Weight3802.40
CAS Number1808297-63-3
SequenceAsp-Cys-Leu-Lys-Phe-Gly-Trp-Lys-Cys-Asn-Pro-Arg-Asn-Asp-Lys-Cys-Cys-Ser-Gly-Leu-Lys-Cys-Gly-Ser-Asn-His-Asn-Trp-Cys-Lys-Leu-His-Ile-NH2 (Disulfide bonds: Cys2-Cys17, Cys9-Cys22, Cys16-Cys29)
Sequence shorteningDCLKFGWKCNPRNDKCCSGLKCGSNHNWCKLHI-NH2 (Disulfide bonds: Cys2-Cys17, Cys9-Cys22, Cys16-Cys29)
Synonymsμ-TRTX-Tp1a
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