Huwentoxin-IV TFA

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Huwentoxin-IV TFA

本产品不向个人销售，仅用作科学研究，不用于任何人体实验及非科研性质的动物实验。

Huwentoxin-IV TFA 是一种有效的、选择性钠通道阻滞剂，可抑制神经元Nav1.7，Nav1.2，Nav1.3和Nav1.4，IC₅₀值分别为 26、150、338 和 400 nM。Huwentoxin-IV TFA 通过结合神经毒素受体位点 4 优先阻断周围神经 Nav1.7 亚型。Huwentoxin-IV TFA 可用于炎性和神经性疼痛的动物模型的研究。

生物活性

Huwentoxin-IV TFA is a potent and selectivesodium channelblocker, inhibits neuronalNav1.7,Nav1.2,Nav1.3andNav1.4withIC₅₀s of 26, 150, 338 and 400 nM, respectively. Huwentoxin-IV TFA preferentially blocks peripheral nerve subtype Nav1.7 by binding neurotoxin receptor site 4. Huwentoxin-IV TFA has analgesic effects on animal models of inflammatory and neuropathic pain^[1]^[2].

IC₅₀& Target^[1]

Nav1.7

26 nM (IC₅₀)

Nav1.3

338 nM (IC₅₀)

Nav1.4

400 nM (IC₅₀)

分子量

4220.80

Formula

C₁₇₆H₂₇₉F₃N₅₂O₅₃S₆

Sequence

Glu-Cys-Leu-Glu-Ile-Phe-Lys-Ala-Cys-Asn-Pro-Ser-Asn-Asp-Gln-Cys-Cys-Lys-Ser-Ser-Lys-Leu-Val-Cys-Ser-Arg-Lys-Thr-Arg-Trp-Cys-Lys-Tyr-Gln-Ile-NH2 (Disulfide bridge:Cys2-Cys17;Cys9-Cys24;Cys16-Cys31)

Sequence Shortening

ECLEIFKACNPSNDQCCKSSKLVCSRKTRWCKYQI-NH2 (Disulfide bridge:Cys2-Cys17;Cys9-Cys24;Cys16-Cys31)

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

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.