2. Membrane Transporter/Ion Channel
  3. Chloride Channel
  4. Chlorotoxin

Chlorotoxin是从雷蛇属以色列蝎子的毒液中提取的由36个氨基酸组成的肽段，具有抗癌活性。Chlorotoxin是氯离子通道 (chloride channel) 阻断剂。

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Custom Peptide Synthesis

Chlorotoxin Chemical Structure

Chlorotoxin Chemical Structure

CAS No. : 163515-35-3

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Other Forms of Chlorotoxin:

Chlorotoxin 相关抗体

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MCE 顾客使用本产品发表的 1 篇科研文献

  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

Chlorotoxin is a 36 amino-acid peptide from the venom of the Israeli scorpion Leiurus quinquestriatus with anticancer activity. Chlorotoxin is a chloride channel blocker.

IC50 & Target

Target: Chloride Channel[1]
体外研究
(In Vitro)

Chlorotoxin (Chlorotoxin) preferentially binds to tumor cells and has been harnessed to develop an imaging agent to help visualize tumors during surgical resection. In addition, chlorotoxin has potential as a vehicle to deliver anti-cancer drugs specifically to cancer cells. Chlorotoxin is shown to bind glioma cells, but is unable to bind normal rat astrocytes and Te671, a human rhabdomyosarcoma cell line. Chlorotoxin inhibits the migration of U251MG (glioma) cells, with an IC50 of 600 nM[2]. Chlorotoxin binds to glioma cells is specific and involves high affinity (Kd=4.2 nM) and low affinity (Kd=660 nM) binding sites[3].Small conductance chloride channels are shown to be potently blocked by Chlorotoxin. Chlorotoxin has been used as a general pharmacological tool to investigate the function of chloride channels[4].

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

Chlorotoxin 相关抗体:
体内研究
(In Vivo)

Chlorotoxin shows insecticidal activity on insects and other invertebrates. After the administration of I-Chlorotoxin to tumor-bearing mice, the peptides accumulated within the tumor[2].Chlorotoxin selectively accumulates in the brain of tumor-bearing mice with calculated brain: muscle ratios of 36.4% of injected dose/g (ID/g), as compared to 12.4%ID/g in control animals[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Clinical Trial
NCT NumberSponsorConditionStart DatePhase
NCT00379132TransMolecular
Breast Cancer|Non-Small Cell Lung Cancer|Melanoma|Colorectal Cancer|Pancreatic Cancer|Prostate Adenocarcinoma|Glioma|Primary Solid Tumors
August 2006Phase 1
NCT04214392City of Hope Medical Center|National Cancer Institute (NCI)
Recurrent Glioblastoma|Recurrent Malignant Glioma|Recurrent WHO Grade II Glioma|Recurrent WHO Grade III Glioma
February 26, 2020Phase 1
分子量

3995.71

Formula

C158H249N53O47S11
CAS 号
性状

液体

颜色

Colorless to light yellow

Sequence

Met-Cys-Met-Pro-Cys-Phe-Thr-Thr-Asp-His-Gln-Met-Ala-Arg-Lys-Cys-Asp-Asp-Cys-Cys-Gly-Gly-Lys-Gly-Arg-Gly-Lys-Cys-Tyr-Gly-Pro-Gln-Cys-Leu-Cys-Arg-NH2 (Disulfide bridge: Cys2-Cys19,Cys5-Cys28,Cys16-Cys33,Cys20-Cys35)
Sequence Shortening

MCMPCFTTDHQMARKCDDCCGGKGRGKCYGPQCLCR-NH2 (Disulfide bridge: Cys2-Cys19,Cys5-Cys28,Cys16-Cys33,Cys20-Cys35)
中文名称

氯毒素；氯代毒素
结构分类
初始来源

Leiurus Quinquestriatus
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)

纯度 & 产品资料
参考文献
Animal Administration
[3]

Mouse: At 24, 48, 72, and 96 h after tumor-bearing and control SCID mice are injected with 125l-labeled Chlorotoxin, they are anesthetized and imaged. Both 125I- and 131l-labeled Chlorotoxin-injected animals and their control counterparts are killed at indicated time points for biodistribution studies[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
参考文献

Chlorotoxin 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

Keywords:

Chlorotoxin163515-35-3氯毒素氯代毒素Chloride ChannelCl− ChannelsInhibitorinhibitorinhibit

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