Binding Inhibitors of the Bacterial Sliding Clamp by Design
作者:Gene Wijffels、Wynona M. Johnson、Aaron J. Oakley、Kathleen Turner、V. Chandana Epa、Susan J. Briscoe、Mitchell Polley、Andris J. Liepa、Albert Hofmann、Jens Buchardt、Caspar Christensen、Pavel Prosselkov、Brian P. Dalrymple、Paul F. Alewood、Philip A. Jennings、Nicholas E. Dixon、David A. Winkler
DOI:10.1021/jm2004333
日期:2011.7.14
The bacterial replisome is a target for the development of new antibiotics to combat drug resistant strains. The beta(2) sliding clamp is an essential component of the replicative machinery, providing a platform for recruitment and function of other replisomal components and ensuring polymerase processivity during DNA replication and repair. A single binding region of the clamp is utilized by its binding partners, which all contain conserved binding motifs. The C-terminal Leu and Phe residues of these motifs are integral to the binding interaction. We acquired three-dimensional structural information on the binding site in beta(2) by a study of the binding of modified peptides. Development of a three-dimensional pharmacophore based on the C-terminal dipeptide of the motif enabled identification of compounds that on further development inhibited alpha-beta(2) interaction at low micromolar concentrations. We report the crystal structure of the complex containing one of these inhibitors, a biphenyl oxime, bound to beta(2), as a starting point for further inhibitor design.
US4737507A
申请人:——
公开号:US4737507A
公开(公告)日:1988-04-12
BE619216
申请人:——
公开号:——
公开(公告)日:——
Heterocyclic pentalene derivatives for use in combating microorganisms
申请人:E. I. Du Pont de Nemours & Co.
公开号:US04737507A1
公开(公告)日:1988-04-12
The invention provides a method of combating a microorganism which comprises allowing a heterocyclic pentalene derivative of general formula I ##STR1## wherein X represents an oxygen atom, a sulphur atom or an --SO-- moiety; Y represents a sulphur, selenium or tellurium atom, provided that when Y represents a selenium or tellurium atom X is an oxygen atom; and R.sup.1 and R.sup.2 together represent a --CH.sub.2 --C(CH.sub.3).sub.2 --CCl(CONH.sub.2)-- or --CH.sub.2 --A--CH.sub.2 -- linkage where A is a --CH.sub.2 --, --CH(CH.sub.3)-- or --S(O).sub.n -- moiety, where n is 0, 1 or 2; provided that when X is an oxygen atom and Y is a sulphur atom R.sup.1 and R.sup.2 together represent a --CH.sub.2 --S(O).sub.n --CH.sub.2 -- linkage and when X is an --SO-- moiety and A is a S(O).sub.n --, n is 2; to act on the microorganism or its environment; and such derivatives for use as a therapeutic substance.