2. Membrane Transporter/Ion Channel Neuronal Signaling
  3. Calcium Channel
  4. ω-Agatoxin TK

ω-AgatoxinTK，Agelenopsis aperta 毒液中的肽基毒素，是一种有效的选择性 P/Q 型 Ca2+ 通道阻滞剂。ω-Agatoxin TK 抑制高 K+ 去极化诱导的大脑孤立神经末梢内部 Ca2+ 的升高，IC50 为 60 nM。ω-Agatoxin TK 对 L 型，N 型或 T 型钙通道没有影响。

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Custom Peptide Synthesis

ω-Agatoxin TK Chemical Structure

ω-Agatoxin TK Chemical Structure

CAS No. : 158484-42-5

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2.  同一机构（单位）同一产品试用装仅限申领一次，同一机构（单位）一年内

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规格 价格 是否有货
10 μg ￥8000
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ω-Agatoxin TK 相关抗体

Top Publications Citing Use of Products

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

ω-Agatoxin TK, a peptidyl toxin of the venom of Agelenopsis aperta, is a potent and selective P/Q type Ca2+ channel blocker. ω-Agatoxin TK inhibits the high K+ depolarisation-induced rise in internal Ca2+ in cerebral isolated nerve endings with an IC50 of of 60 nM. ω-Agatoxin TK has no effect on L-type, N-type, or T-type calcium channels[1][2][3].

IC50 & Target

P/Q-type calcium channel

 

分子量

5273.02

Formula

C215H337N65O70S10
CAS 号
性状

固体

颜色

White to off-white

Sequence

Glu-Asp-Asn-Cys-Ile-Ala-Glu-Asp-Tyr-Gly-Lys-Cys-Thr-Trp-Gly-Gly-Thr-Lys-Cys-Cys-Arg-Gly-Arg-Pro-Cys-Arg-Cys-Ser-Met-Ile-Gly-Thr-Asn-Cys-Glu-Cys-Thr-Pro-Arg-Leu-Ile-Met-Glu-Gly-Leu-Ser-Phe-Ala (Disulfide bridge:Cys4-Cys20,Cys12-Cys25,Cys19-Cys36,Cys27-Cys34)
Sequence Shortening

EDNCIAEDYGKCTWGGTKCCRGRPCRCSMIGTNCECTPRLIMEGLSFA (Disulfide bridge:Cys4-Cys20,Cys12-Cys25,Cys19-Cys36,Cys27-Cys34)
运输条件

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

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

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.
纯度 & 产品资料

纯度: ≥99.0%

COA (265 KB)

产品使用指南 (1538 KB)
参考文献

ω-Agatoxin TK 相关分类

  • 摩尔计算器

  • 稀释计算器

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量   浓度   体积   分子量 *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

ω-Agatoxin TK158484-42-5Calcium ChannelCa2+ channelsCa channelsP-typeQ-typepeptidyltoxindepolarisationnerveCa2+Inhibitorinhibitorinhibit

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目录号：
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