碳水化合物组装体的分子水平描述因其结构复杂性和缺乏合适的分析方法而受到阻碍。在这里,我们采用系统的化学修饰来识别触发二糖模型超分子组装的关键非共价相互作用。虽然一些修饰破坏了超分子组织,但其他修饰却被容忍,从而提供了有关聚集过程的重要信息。筛选确定了新的几何形状,包括纳米管和扭曲带,并通过电子断层扫描和电子衍射(ED)方法进行了表征。这项工作表明,合成化学和 ED 方法的结合是绘制碳水化合物组装体的分子结构和纳米级结构之间相关性的强大工具。
[EN] STABLE VACCINE AGAINST CLOSTRIDIUM DIFFICILE<br/>[FR] VACCIN STABLE DIRIGÉ CONTRE CLOSTRIDIUM DIFFICILE
申请人:VAXXILON AG
公开号:WO2020104697A1
公开(公告)日:2020-05-28
The present invention relates to a synthetic saccharide of general formula (I) that is related to Clostridium difficile PS-II cell-surface polysaccharide and conjugate thereof. Said synthetic saccharide, said conjugate and pharmaceutical composition containing said synthetic saccharide or said conjugate are useful for prevention and/or treatment of diseases associated with Clostridium difficile. Furthermore, the synthetic saccharide of general formula (I) is useful as marker in immunological assays for detection of antibodies against Clostridium difficile bacteria.
Treatment or prophylaxis of diseases caused by pilus-forming bacteria
申请人:——
公开号:US06001823A1
公开(公告)日:1999-12-14
Novel methods for the treatment and/or prophylaxis of diseases caused by tissue-adhering bacteria are disclosed. By interacting with periplasmic molecular chaperones it is achieved that the assembly of pili is prevented or inhibited and thereby the infectivity of the bacteria is diminished. Also disclosed are methods for screening for drugs as well as methods for the de novo design of such drugs, methods which rely on novel computer drug modelling methods involving an approximative calculation of binding free energy between macromolecules. Finally, novel pyranosides which are believed to be capable of interacting with periplasmic molecular chaperones are also disclosed.
Well-Defined Oligo- and Polysaccharides as Ideal Probes for Structural Studies
作者:Martina Delbianco、Andrew Kononov、Ana Poveda、Yang Yu、Tammo Diercks、Jesús Jiménez-Barbero、Peter H. Seeberger
DOI:10.1021/jacs.8b00254
日期:2018.4.25
polysaccharides resembling natural as well as unnatural structures. These synthetic glycans are ideal probes for the fundamental study of polysaccharides. According to molecular modeling simulations and NMR analysis, different classes of polysaccharides adopt fundamentally different conformations that are drastically altered by single-site substitutions. Larger synthetic polysaccharides are obtained