Discovery of fragments that target key interactions in the signal recognition particle (SRP) as potential leads for a new class of antibiotics.

ABSTRACT: Given the increasing incidence of antibiotic resistance, antibiotics that employ new strategies are urgently needed. Bacterial survival is dependent on proper function of the signal recognition particle (SRP) and its receptor (FtsY). A unique set of interactions in FtsY:SRP-RNA represents a promising candidate for new antibiotic development as no antibiotic targets this complex and these interactions are functionally replaced by protein:protein interactions in eukaryotes. We used a Fragment Based Drug Design (FBDD) approach to search for new compounds that can bind FtsY, and have identified three lead fragments. In vitro and in vivo analyses have shown that despite a high micromolar binding affinity, one fragment has some antimicrobial properties. X-ray structures of E. coli FtsY:fragments

SUBMITTER: Faoro C 

PROVIDER: S-EPMC6059433 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature