Clasto-Lactacystin β-lactone - CAS:154226-60-5

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Clasto-Lactacystin β-lactone (Synonyms:Clasto-乳胞素 β-内酯)

目录号 : KCM11641 CAS No. : 154226-60-5 纯度 : ≥95%

Data Sheet 产品使用指南

Lactacystin is a microbial metabolite isolated from Streptomyces that is now widely used as a selective inhibitor of the 20S proteasome. Clasto-lactacystin β-lactone was later identified as the active metabolite of lactacystin, resulting from the elimination of cysteine and the formation of a reactive β-lactone. Both lactacystin and its β-lactone metabolite induce differentiation and inhibit cell cycle progression in several tumor cell lines. Clasto-lactacystin β-lactone irreversibly alkylates subunit X of the 20S proteasome. It is at least 10 times more active than the parent compound; this increased activity may be a function of increased cell permeability. Inhibition of proteasome peptidase activity results in the accumulation of a variety of ubiquitinated proteins which would normally undergo rapid degradation. Thus, the effects of clasto-lactacystin β-lactone are pleiotropic and depend substantially on the expression pattern of signaling proteins within the treated cell.

规格	价格	是否有货	数量
50μg		In-stock
100μg		In-stock
500μg		In-stock
1mg		In-stock

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生物活性

Clasto-Lactacystin β-lactone, a natural active metabolite of lactacystin, which is a metabolite of Streptomyces, acts as an irreversible 20S proteasome inhibitor.

IC₅₀&Target

20S proteasome

体外研究

Clasto-Lactacystin β-lactone is a natural active metabolite of lactacystin, which is a metabolite of Streptomyces. Clasto-Lactacystin β-lactone is the cell cycle progression in an osteosarcoma cell line. Clasto-Lactacystin β-lactone is an irreversible 20S proteasome inhibitor, and also acts as a partial inhibitor of branched amino acid preferring peptidase (BrAAP). β-Lactone inactivates approximately 60% of the BrAAP activity rapidly, and the remaining 40% of the BrAAP activity is inactivated by β-lactone at a 50-fold slower rate.

分子式

C₁₀H₁₅NO₄

分子量

213.23

CAS号

154226-60-5

中文名称

Clasto-乳胞素 β-内酯

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

纯度： ≥95%

Data Sheet

产品使用指南

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The molarity calculator equation

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

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2

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动物实验计算换算器

第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量）

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工作液浓度： mg/ml；

DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，注：如该浓度超过该批次药物DMSO溶解度，请先联系客服）；

体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL ddH₂O，混匀澄清。

配置后的溶液总体积：

注意：1. 首先保证母液是澄清的；
2. 一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。

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The molarity calculator equation

The dilution calculator equation

动物实验计算换算器