Reutericyclin
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
Reutericyclin是一种从Lactobacillus reuteri中分离得到的小分子量抗生素。该菌株是于1988年从一个工业酵母SER中分离得到的。Reutericyclin在小于1mg/L的浓度时可以抑制一系列革兰氏阳性细菌的生长,包括与面团发酵相关的乳酸菌[1]。
将抗微生物化合物(如nisin和tetramic acid reutericyclin)与适当的温度和压力相结合能够获得对食物最小程度的加工,但控制了内生孢子的生长和存活。Nisin和reutericyclin都是靶向细胞膜的抗菌剂,但它们有不同的作用方式。Nisin通过加热或加压处理后不会被灭活,reutericyclin是一个对热压稳定的tetramic acid衍生物[2]。
天然存在的reutericyclin可以选择性地消除细菌的跨膜电位,抑制革兰氏阳性菌的生长。Reutericyclin可作为一种新的方法用于抑制C. Difficile的生长。与细菌素不同,Reutericyclin对蛋白水解酶具有抗性,易于合成,易于化学修饰从而改善其抗菌和理化性质。Reutericyclin在接近于抑制对数期细胞生长的浓度时,对非分裂的静止期细胞具有快速的杀菌活性[3]。
参考文献:
[1]. Gänzle MG, Vogel RF. Contribution of reutericyclin production to the stable persistence of Lactobacillus reuteri in an industrial sourdough fermentation. Int J Food Microbiol. 2003 Jan 15;80(1):31-45.
[2]. Hofstetter S, Gebhardt D, Ho L, Gänzle M et al. Effects of nisin and reutericyclin on resistance of endospores of Clostridium spp. to heat and high pressure. Food Microbiol. 2013 May;34(1):46-51. doi: 10.1016/j.fm.2012.11.001. Epub 2012 Nov 12.
[3]. Hurdle JG, Heathcott AE, Yang L et al. Reutericyclin and related analogues kill stationary phase Clostridium difficile at achievable colonic concentrations. J Antimicrob Chemother. 2011 Aug;66(8):1773-6. doi: 10.1093/jac/dkr201. Epub 2011 May 31.
Storage | Store at -20°C |
M.Wt | 349.47 |
Cas No. | 303957-69-9 |
Formula | C20H31NO4 |
Solubility | Soluble in DMSO |
Chemical Name | (R,E)-4-acetyl-1-(dec-2-enoyl)-5-hydroxy-2-isobutyl-1H-pyrrol-3(2H)-one |
SDF | Download SDF |
Canonical SMILES | OC(N1C(/C=C/CCCCCCC)=O)=C(C(C)=O)C([C@H]1CC(C)C)=O |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |
细胞实验 [1]: | |
细胞系 |
艰难梭菌9689(毒素型0),BAA-1803(毒素型III,NAP1)和BAA-1875(毒素型V,NAP7) |
制备方法 |
溶解度有限。若配制更高浓度的溶液,一般步骤如下:请将试管置于37℃加热10分钟和/或将其置于超声波浴中震荡一段时间。原液于-20℃可放置数月。 |
反应条件 |
37℃ |
实验结果 |
在三个不相关的测试株中,Reutericyclin均具有活性,平均MIC为0.09-0.5 mg/L。此外,Reutericyclin可以杀菌,导致细胞减少大于3log,在24小时稳定期培养中,Reutericyclin的有效杀菌活性持续24小时,它具有快速的浓度依赖性杀伤效果。 |
References: 1. Hurdle JG, Heathcott AE, Yang L, Yan B, Lee RE. Reutericyclin and related analogues kill stationary phase Clostridium difficile at achievable colonic concentrations. J Antimicrob Chemother. 2011 Aug; 66(8):1773-6. |