Charybdotoxin TFA

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Charybdotoxin TFA; 纯度: 96.64%

Charybdotoxin TFA 是一种含 37 个氨基酸的肽，是一个 K+ 通道阻滞剂。

Charybdotoxin TFAamp;;

Charybdotoxin TFA Chemical Structure

规格 价格 是否有货 数量
1 mg ￥2500 In-stock
5 mg ￥7300 In-stock
10 mg ￥12500 In-stock
50 mg ; 询价 ;
100 mg ; 询价 ;

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Charybdotoxin TFA 相关产品

bull;相关化合物库:

  • Bioactive Compound Library Plus
  • Peptide Library

生物活性

Charybdotoxin TFA, a 37-amino acid peptide, is a K+ channel blocker[1].

体外研究
(In Vitro)

Charybdotoxin represents a remarkable tool for studying K+ channels[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量

4409.91

Formula

C176H277N57O55S7.C2HF3O2
Sequence

{Glp}-Phe-Thr-Asn-Val-Ser-Cys-Thr-Thr-Ser-Lys-Glu-Cys-Trp-Ser-Val-Cys-Gln-Arg-Leu-His-Asn-Thr-Ser-Arg-Gly-Lys-Cys-Met-Asn-Lys-Lys-Cys-Arg-Cys-Tyr-Ser (Disulfide bridge: Cys7-Cys28; Cys13-Cys33; Cys17-Cys35)
Sequence Shortening

{Glp}-FTNVSCTTSKECWSVCQRLHNTSRGKCMNKKCRCYS (Disulfide bridge: Cys7-Cys28; Cys13-Cys33; Cys17-Cys35)
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

Sealed storage, away from moisture and light

Powder -80deg;C 2 years
-20deg;C 1 year

*In solvent : -80deg;C, 6 months; -20deg;C, 1 month (sealed storage, away from moisture and light)
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]. M L Garcia , et al. Charybdotoxin and its effects on potassium channels. Am J Physiol. 1995 Jul;269(1 Pt 1):C1-10.