Bacterial Sliding Clamp Inhibitors that Mimic the Sequential Binding Mechanism of Endogenous Linear Motifs
摘要:
The bacterial DNA replication machinery presents new targets for the development of antibiotics acting via novel mechanisms. One such target is the protein-protein interaction between the DNA sliding clamp and the conserved peptide linear motifs in DNA polymerases. We previously established that binding of linear motifs to the Escherichia coli sliding clamp occurs via a sequential mechanism that involves two subsites (I and II). Here, we report the development of small-molecule inhibitors that mimic this mechanism. The compounds contain tetrahydrocarbazole moieties as "anchors" to occupy subsite I. Functional groups appended at the tetrahydrocarbazole nitrogen bind to a channel gated by the side chain of M362 and lie at the edge of subsite II. One derivative induced the formation of a new binding pocket, termed subsite III, by rearrangement of a loop adjacent to subsite I. Discovery of the extended binding area will guide further inhibitor development.
Cyclopenta[b]indole-2-carboxylic acids and derivatives thereof
申请人:Hoffmann-La Roche Inc.
公开号:US04009181A1
公开(公告)日:1977-02-22
1,2,3,4-Tetrahydrocarbazoles and cyclopenta[b] indoles prepared from the corresponding phenyl hydrazines and corresponding cyclohexanones or cyclopentanones, respectively, are described. The products of the invention are useful anti-inflammatory, analgesic and anti-rheumatic agents.