Site-Specific Binding of Quinones to Proteins through Thiol Addition and Addition−Elimination Reactions
作者:Wen-Wu Li、Jürgen Heinze、Wolfgang Haehnel
DOI:10.1021/ja050974x
日期:2005.5.1
Model thioether quinone conjugates showed unexpected reactivity to cysteine of proteins as their parent quinones by thiol addition-elimination reaction. Cyclic voltammetry studies of the model compounds showed only minor differences in their redox potentials as compared to their parent quinones. Thioether ligation provides a general, simple, and fast method to construct model quinone protein systems
Ubiquinone-0、menaquinone-0 和 2,3,5-trimethyl-1,4-benzoquinone 通过硫醚键形成与蛋白质的游离半胱氨酸(酵母 iso-1 细胞色素 c 作为模型蛋白质)进行位点特异性结合。模型硫醚醌缀合物通过硫醇加成消除反应显示出对作为其母体醌的蛋白质的半胱氨酸的出乎意料的反应性。模型化合物的循环伏安法研究表明,与其母体醌相比,它们的氧化还原电位只有很小的差异。硫醚连接提供了一种通用、简单且快速的方法来构建模型醌蛋白质系统。此外,这些研究也有助于了解醌类和硫醚醌加合物的生物活性、毒性和抗癌机制。
COMPOSITION FOR INHIBITING OR PREVENTING THE FORMATION OF A BIOFILM
申请人:Oystershell NV
公开号:EP1796656A2
公开(公告)日:2007-06-20
Composition for Inhibiting or Preventing the Formation of a Biofilm
申请人:Rossel Bart
公开号:US20070258913A1
公开(公告)日:2007-11-08
Compounds for inhibiting and/or preventing the formation of a biofilm are disclosed. The compounds are an anthraquinone and/or a naphtoquinone, stereoisomeric forms, racemic mixtures, metabolites, esters or salts thereof, or mixtures thereof, and/or at least one plant extract including the compound or active fraction thereof. Compositions containing the compounds such as oral health products and methods of using the products in a method to prevent or inhibit biofilm formation are also disclosed. Preferred compositions include emodin and/or plant extracts from
Rheum
sp.
US7691418B2
申请人:——
公开号:US7691418B2
公开(公告)日:2010-04-06
[EN] COMPOSITION FOR INHIBITING OR PREVENTING THE FORMATION OF A BIOFILM<br/>[FR] COMPOSITION PERMETTANT DE BLOQUER OU D'EMPECHER LA FORMATION D'UN FILM BIOLOGIQUE
申请人:OYSTERSHELL NV
公开号:WO2006029893A2
公开(公告)日:2006-03-23
The present invention provides the use of a compound selected from the group comprising an anthraquinone and a naphtoquinone, stereoisomeric forms, racemic mixtures, metabolites, esters or salts thereof, or mixtures thereof, and/or of at least one plant extract or active fraction thereof comprising said compound for preventing and/or inhibiting biofilm formation. The present invention further relates to compositions for preventing and/or inhibiting the formation of a biofilm, oral health products and a method for preventing and/or inhibiting biofilm formation.