Mutations in bdca and vals correlate with quinolone resistance in wastewater escherichia coli

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

Abstract

Single mutations can confer resistance to antibiotics. Identifying such mutations can help to develop and improve drugs. Here, we systematically screen for candidate quinolone resistance-conferring mutations. We sequenced highly diverse wastewater E. coli and performed a genome-wide association study (GWAS) to determine associations between over 200,000 mutations and quinolone resistance phenotypes. We uncovered 13 statistically significant mutations including 1 located at the active site of the biofilm dispersal gene bdcA and 6 silent mutations in the aminoacyl-tRNA synthetase valS. The study also recovered the known mutations in the topoisomerases gyrase (gyrA) and topoisomerase IV (parC). In summary, we demonstrate that GWAS effectively and comprehensively identifies resistance mutations without a priori knowledge of targets and mode of action. The results suggest that mutations in the bdcA and valS genes, which are involved in biofilm dispersal and translation, may lead to novel resistance mechanisms.

Details

OriginalspracheEnglisch
Aufsatznummer6063
FachzeitschriftInternational journal of molecular sciences
Jahrgang22
Ausgabenummer11
PublikationsstatusVeröffentlicht - 1 Juni 2021
Peer-Review-StatusJa

Externe IDs

PubMed 34199768
ORCID /0000-0003-2848-6949/work/141543334
ORCID /0000-0002-9301-1803/work/161409762

Schlagworte

Schlagwörter

  • Antibiotic resistance, E. coli, Genome-wide association study (GWAS), Quinolones