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    • 10. 发明公开
    • Method to treat microbial infections by uncoupling of phosphotransferase system and appropriate agents therefor
    • 一种用于治疗微生物感染mittles解耦磷酸转移酶系统的方法,以及geeingnete剂
    • EP0866075A2
    • 1998-09-23
    • EP98101704.9
    • 1998-02-02
    • Arpida
    • Erni, Bernhard
    • C07K7/06C07K7/08C07K5/10A61K38/00
    • C07K7/06A61K38/00C07K5/1024C07K7/08
    • The bacterial phosphotransferase system (PTS) as a drug target system catalyses the uptake and phosphorylation of carbohydrates. It is further involved in signal transduction, e.g. catabolite repression, chemotaxis, and allosteric regulation of metabolic enzymes and transporters. It is ubiquitous in bacteria but does not occur in eukaryotes. This uniqueness and the pleiotropic function make the PTS a target for the development of new antimicrobials. Assays are described that lead to the discovery of compounds which uncouple the PTS, by acting as protein histidine/cysteine phosphatases. Uncoupling of the PTS leads to inhibition of carbohydrate transport, repression of catabolite controlled genes (e.g. certain virulence genes) and depletion of phosphoenolpyruvate. Compounds from combinatorial libraries with high affinity for phosphoenolpyruvat-protein-phosphatase (Enzyme I) serve as lead structures for the development of inhibitors and uncouplers of the PTS.
    • 细菌磷酸转移酶系统(PTS)作为药物靶标系统催化碳水化合物的摄取和磷酸化。 它是在信号转导进一步介入,E.G. 代谢物阻遏,趋化和代谢酶和转运蛋白的变构调节。 它是细菌无处不在,但在真核生物中不会发生。 这种独特性和多效功能,使PTS对新抗菌药物的发展目标。 测定被充当蛋白质组氨酸/半胱氨酸磷酸酶描述确实导致这脱开PTS化合物的发现。 的PTS的解偶联导致抑制碳水化合物运输,分解代谢物控制的基因(E. G.某些毒力基因)和磷酸烯醇式丙酮酸的耗尽压制。 从与磷酸烯醇丙酮酸蛋白磷酸酶的高亲和力的组合文库的化合物(酶I)作为抑制剂和所述PTS的解偶联剂的发展引线结构。