Polymyxin B nonapeptide TFA
目录号: PL13849 纯度: ≥99%
CAS No. :2220175-42-6
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中文名称
Polymyxin B nonapeptide TFA
英文名称
Polymyxin B nonapeptide TFA
英文别名
(2S,3R)-2-Amino-N-((S)-4-amino-1-oxo-1-(((3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-15-ben;Polymyxin B nonapeptide TFA
Cas No.
2220175-42-6
分子式
C45H75F3N14O13
分子量
1077.16
包装储存
Sealed storage, away from moisturePowder -80°C 2 years;-20°C 1 year
产品详情
Polymyxin B nonapeptide TFA 是一种阳离子环肽。Polymyxin B nonapeptide TFA 是经酶裂解 Polymyxin B 而产生的衍生物,与 Polymyxin B 相比,Polymyxin B nonapeptide TFA 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。
生物活性
Polymyxin B nonapeptide TFA is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue. 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.
性状
Solid
体外研究(In Vitro)
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). has not independently confirmed the accuracy of these methods. They are for reference only.
运输条件
Room temperature in continental US; may vary elsewhere.
储存方式
Sealed storage, away from moisturePowder -80°C 2 years;-20°C 1 year
参考文献
[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.
溶解度数据
In Vitro: H2O : 50 mg/mL (32.61 mM; ultrasonic and warming and heat to 60°C)配制储备液
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1:一般建议:溶解度为Medlife测试数据,可能与文献描述存在差异。这是由于生产工艺和批次不同产生的正常现象。为了使其更好的溶解,请用37℃加热试管并在超声波水浴中震动片刻。不同批次产品溶解度各有差异,仅做参考,具体以实验方案为准。

2:储存条件:粉末-20°C一般情况可以保存3年,溶于溶剂-80°C一般情况可以保存1年。不同产品及不同批次产品可能存在差异,请细致阅读产品信息,并辅助参考相关文献描述。

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