Polymyxin B nonapeptide TFA
(Synonyms: POLYMYXINBNONAPEPTIDE三氟乙酸盐) 目录号 : GC61196PolymyxinBnonapeptideTFA是一种阳离子环肽。PolymyxinBnonapeptideTFA是经酶裂解PolymyxinB而产生的衍生物,与PolymyxinB相比,PolymyxinBnonapeptideTFA毒性低,缺乏杀菌活性,仍具有破坏革兰氏阴性菌外膜的能力。
Cas No.:2220175-42-6
Sample solution is provided at 25 µL, 10mM.
Polymyxin B nonapeptide TFA is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue[1]. Polymyxin B nonapeptide TFA is less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes[2].
Polymyxin B nonapeptide, a cationic cyclic peptide derived by enzymatic processing from the naturally occurring peptide polymyxin B, is able to increase the permeability of the outer membrane of Gram-negative bacteria toward hydrophobic antibiotics probably by binding to the bacterial lipopolysaccharide (LPS)[1].
[1]. Tsubery H, et al. Structure-function studies of polymyxin B nonapeptide: implications to sensitization of gram-negative bacteria. J Med Chem. 2000 Aug 10;43(16):3085-92. [2]. Ofek I, et al. Antibacterial synergism of polymyxin B nonapeptide and hydrophobic antibiotics in experimental gram-negative infections in mice. Antimicrob Agents Chemother. 1994 Feb;38(2):374-7.
Cas No. | 2220175-42-6 | SDF | |
别名 | POLYMYXINBNONAPEPTIDE三氟乙酸盐 | ||
分子式 | C43H74N14O11.5C2HF3O2 | 分子量 | 1533.25 |
溶解度 | Water: 100 mg/mL (65.22 mM); DMSO : 50 mg/mL (Need ultrasonic) | 储存条件 | Store at -20°C,protect from light |
General tips | 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 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。 为了提高溶解度,请将管子加热至37℃,然后在超声波浴中震荡一段时间。 |
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Shipping Condition | 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。 |
制备储备液 | |||
1 mg | 5 mg | 10 mg | |
1 mM | 0.6522 mL | 3.261 mL | 6.5221 mL |
5 mM | 0.1304 mL | 0.6522 mL | 1.3044 mL |
10 mM | 0.0652 mL | 0.3261 mL | 0.6522 mL |
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) | ||||||||||
给药剂量 | mg/kg | 动物平均体重 | g | 每只动物给药体积 | ul | 动物数量 | 只 | |||
第二步:请输入动物体内配方组成(配方适用于不溶于水的药物;不同批次药物配方比例不同,请联系GLPBIO为您提供正确的澄清溶液配方) | ||||||||||
% DMSO % % Tween 80 % saline | ||||||||||
计算重置 |
计算结果:
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,
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 saline,混匀澄清。
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。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
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- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet