1. Anti-infection
  2. Bacterial Antibiotic Fungal
  3. Magainin 2

Magainin 2  (Synonyms: 蛙皮素 2; Magainin II)

目录号: HY-P0270 纯度: 98.98%
COA 产品使用指南

Magainin 2 (Magainin II) 是一种抗菌肽 (AMP),从非洲爪蟾皮肤中分离得到。Magainin 2 显示抗生素活性对许多革兰氏阴性和革兰氏阳性细菌。Magainin 2 对原生动物也有活性。Magainin 2 通过优先与细菌膜中丰富的阴离子磷脂相互作用而发挥细胞毒性作用。

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Custom Peptide Synthesis

Magainin 2 Chemical Structure

Magainin 2 Chemical Structure

CAS No. : 108433-95-0

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     可免费申领三个不同产品的试用装。

3.  试用装只面向终端客户

规格 价格 是否有货 数量
500 μg ¥900
In-stock
1 mg ¥1600
In-stock
5 mg ¥6400
In-stock
10 mg ¥9900
In-stock
50 mg   询价  
100 mg   询价  

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Top Publications Citing Use of Products
  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

Magainin 2 (Magainin II) is an antimicrobial peptide (AMP) isolated from the skin of the African clawed frog Xenopus laevis. Magainin 2 displays antibiotic activity against numerous gram-negative and gram-positive bacteria. Magainin 2 also is active against protozoa[1]. Magainin 2 exerts its cytotoxicity effects by preferential interactions with anionic phospholipids abundant in bacterial membranes[2].

体外研究
(In Vitro)

Magainin 2 exhibits bactericidal effects and induces morphological changes in Escherichia coli regarding early apoptosis. Magainin 2 induces the expression of a bacterial protein with affinity for the caspase substrate and effects the expression of RecA as a caspase-like protein[1]. Magainin 2 kill bacteria by permeabilizing the cell membranes without exhibiting significant toxicity against mammalian cells. The main target of the peptide is considered to be the lipid matrix of the membranes. Application of 10 μg /mL magainin 2 to Paramecium caudatum, a protozoan, in pond water caused an osmotic swelling of the cell and a subsequent cell burst, suggesting that the peptide could perturb membrane functions responsible for osmotic balance[2]. Magainin 2 permeabilizes bacterial and mammalian membranes in significantly different ways. The peptide forms pores with a diameter of about 2.8 nm (less than 6.6 nm) in B. megaterium, and translocates into the cytosol. In contrast, the peptide significantly perturbes the membrane of CHO-K1 cells, permitting the entry of a large molecule (larger than 23 nm) into the cytosol, accompanied by membrane budding and lipid flip-flop, mainly accumulating in mitochondria and nuclei[3].

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

分子量

2466.90

Formula

C114H180N30O29S

CAS 号
性状

固体

颜色

White to off-white

Sequence

Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-Glu-Ile-Met-Asn-Ser

Sequence Shortening

GIGKFLHSAKKFGKAFVGEIMNS

中文名称

蛙皮素 2

结构分类
初始来源

the skin of the African clawed frog

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Sealed storage, away from moisture and light

Powder -80°C 2 years
-20°C 1 year

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

溶解性数据
In Vitro: 

H2O 中的溶解度 : 50 mg/mL (20.27 mM; 超声助溶)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 0.4054 mL 2.0268 mL 4.0537 mL
5 mM 0.0811 mL 0.4054 mL 0.8107 mL
查看完整储备液配制表

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

* 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

  • 摩尔计算器

  • 稀释计算器

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

质量
=
浓度
×
体积
×
分子量 *

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

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物溶解方案计算器
请输入动物实验的基本信息:

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

由于实验过程有损耗,建议您多配一只动物的量
计算结果
工作液所需浓度 : mg/mL
该产品水溶性佳,请具体参考实测 水 / PBS / Saline 中的溶解度数据。
您所需的储备液浓度超过该产品的实测溶解度,如有需要,请与 MCE 中国技术支持联系。
纯度 & 产品资料
参考文献
Cell Assay
[1]

Escherichia coli cells are incubated with magainin 2 (50 μg /mL). The cultures are acquired after incubation for 0, 2, 4, 6, and 8 h, respectively, and spread onto LB agar plates, and then the colony-forming units are counted after incubation for 24 h at 37°C. The percentage survival is determined relative to the control treatment[1].

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

参考文献

Magainin 2 相关分类

完整储备液配制表

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 0.4054 mL 2.0268 mL 4.0537 mL 10.1342 mL
5 mM 0.0811 mL 0.4054 mL 0.8107 mL 2.0268 mL
10 mM 0.0405 mL 0.2027 mL 0.4054 mL 1.0134 mL
15 mM 0.0270 mL 0.1351 mL 0.2702 mL 0.6756 mL
20 mM 0.0203 mL 0.1013 mL 0.2027 mL 0.5067 mL

* 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

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.

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