PeptideDB

Magainin 2

CAS No.: 108433-95-0

Magainin II is a member of the antimicrobial peptides family
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Description Magainin II is a member of the antimicrobial peptides family
In vitro Magainin 2展现出对大肠杆菌具有杀菌效果,并引起其早期凋亡相关的形态变化。该化合物促进与caspase底物亲和的细菌蛋白表达,并影响像caspase一样的蛋白RecA的表达[1]。Magainin 2通过渗透细胞膜来杀死细菌,但对哺乳动物细胞的毒性不显著。该肽段的主要靶标被认为是膜的脂质基质。将10 μg/mL的Magainin 2应用于池塘水中的草履虫(一种原生动物)时,导致细胞出现渗透性肿胀和随后的细胞破裂,表明该肽能扰乱负责渗透平衡的膜功能[2]。Magainin 2以显著不同的方式渗透细菌和哺乳动物的膜。在B. megaterium中,该肽形成直径约2.8nm(小于6.6nm)的孔洞,并转移到细胞质中。相比之下,该肽显著扰乱CHO-K1细胞的膜,允许大分子(大于23nm)进入细胞质,伴随膜胞芽和脂质翻转,主要累积在线粒体和核内[3]。
Synonyms 蛙皮素 2
molecular weight 2466.9
Molecular formula C114H180N30O29S
CAS 108433-95-0
Storage keep away from moisture | Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Solubility DMSO: 5 mM
References 1. Lee W, et al. Magainin 2 induces bacterial cell death showing apoptotic properties. Curr Microbiol. 2014 Dec;69(6):794-801.