Huwentoxin-IV TFA

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Huwentoxin-IV TFA;

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。

Huwentoxin-IV TFAamp;;

Huwentoxin-IV TFA Chemical Structure

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

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生物活性

Huwentoxin-IV TFA is a potent and selective sodium channel blocker, inhibits neuronal Nav1.7, Nav1.2, Nav1.3 and Nav1.4 with IC50s 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

Nav1.7

26 nM (IC50)

Nav1.2

150 nM (IC50)

Nav1.3

338 nM (IC50)

Nav1.4

400 nM (IC50)

分子量

4220.80

Formula

C176H279F3N52O53S6
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 (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;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.
参考文献

  • [1]. Xiao Y, et, al. Tarantula huwentoxin-IV inhibits neuronal sodium channels by binding to receptor site 4 and trapping the domain ii voltage sensor in the closed configuration. J Biol Chem. 2008 Oct 3;283(40):27300-13.

    [2]. Liu Y, et, al. Analgesic effects of Huwentoxin-IV on animal models of inflammatory and neuropathic pain. Protein Pept Lett. 2014; 21(2): 153-8.