Huwentoxin XVI

Catalog No.: A66281
N-type Calcium Channel Antagonist
Huwentoxin XVI is a selective antagonist of N-type calcium channels, demonstrating a potent inhibitory effect with an IC50 of approximately 60 nM. Derived from the Chinese tarantula Ornithoctonus huwena, it serves as an analgesic and exhibits no activity against voltage-gated T-type calcium channels, potassium channels, or sodium channels. This specificity makes Huwentoxin XVI valuable in research aimed at understanding pain mechanisms and the role of calcium channels in various physiological processes.
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Size Stock
5mg
10mg
50mg
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Bulk Discount
Free Delivery on orders over $500
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
DescriptionHuwentoxin XVI is a selective antagonist of N-type calcium channels, demonstrating a potent inhibitory effect with an IC50 of approximately 60 nM. Derived from the Chinese tarantula Ornithoctonus huwena, it serves as an analgesic and exhibits no activity against voltage-gated T-type calcium channels, potassium channels, or sodium channels. This specificity makes Huwentoxin XVI valuable in research aimed at understanding pain mechanisms and the role of calcium channels in various physiological processes.
Product Information
Catalog NumA66281
FormulaC196H292N50O56S6
Molecular Weight4437.13
CAS Number1600543-88-1
SequenceCys-Ile-Gly-Glu-Gly-Val-Pro-Cys-Asp-Glu-Asn-Asp-Pro-Arg-Cys-Cys-Ser-Gly-Leu-Val-Cys-Leu-Lys-Pro-Thr-Leu-His-Gly-Ile-Trp-Tyr-Lys-Ser-Tyr-Tyr-Cys-Tyr-Lys-Lys (Disulfide bridge:Cys1-Cys16;Cys8-Cys21;Cys15-Cys36)
Sequence shorteningCIGEGVPCDENDPRCCSGLVCLKPTLHGIWYKSYYCYKK (Disulfide bridge:Cys1-Cys16;Cys8-Cys21;Cys15-Cys36)
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