Polymyxin B nonapeptide 是一种阳离子环肽。Polymyxin B nonapeptide 是经酶裂解 Polymyxin B 而产生的衍生物,与 Polymyxin B 相比,Polymyxin B nonapeptide 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。
Polymyxin B nonapeptide Chemical Structure
CAS No. : 86408-36-8
规格
价格
是否有货
10;mM;*;1 mL in DMSO
¥2650
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5 mg
¥1500
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10 mg
¥2500
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50 mg
¥9500
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100 mg
¥16500
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Polymyxin B nonapeptide 的其他形式现货产品:
Polymyxin B nonapeptide TFA
生物活性
Polymyxin B nonapeptide is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue[1]. Polymyxin B nonapeptide 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].
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)[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
[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.
Colistin A 是 Colistin 的一种主要成分。Colistin 是一种多粘菌素抗生素 (antibiotic)。Colistin 可用来对抗由革兰氏阴性菌引起的感染。
Colistin A Chemical Structure
CAS No. : 7722-44-3
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是否有货
500 μg
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生物活性
Colistin A is a major component of Colistin. Colistin is a polymyxin antibiotic and can be used to combat infections caused by problematic gram-negative bacteria[1].
Room temperature in continental US; may vary elsewhere.
储存方式
Please store the product under the recommended conditions in the Certificate of Analysis.
参考文献
[1]. Lauren M. Lim, et al. Resurgence of Colistin: A Review of Resistance, Toxicity, Pharmacodynamics, and Dosing. Pharmacotherapy. 2010 Dec; 30(12): 1279-1291.