Interspecies Transfer of the Penicillin-Binding Protein 3-Encoding Gene ftsI between Haemophilus influenzae and Haemophilus haemolyticus Can Confer Reduced Susceptibility to β-Lactam Antimicrobial Agents | Zendy

Annette Søndergaard | Zendy; Elizabeth A. Witherden | Zendy; Niels NørskovLauritsen | Zendy; SG Tristram | Zendy

Open Access

Interspecies Transfer of the Penicillin-Binding Protein 3-Encoding Gene ftsI between Haemophilus influenzae and Haemophilus haemolyticus Can Confer Reduced Susceptibility to β-Lactam Antimicrobial Agents

Author(s) -

Annette Søndergaard,

Elizabeth A. Witherden,

Niels NørskovLauritsen,

SG Tristram

Publication year - 2015

Publication title -

antimicrobial agents and chemotherapy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.07

H-Index - 259

eISSN - 1070-6283

pISSN - 0066-4804

DOI - 10.1128/aac.04854-14

Subject(s) - haemophilus , haemophilus influenzae , microbiology and biotechnology , penicillin binding proteins , biology , gene transfer , gene , penicillin , virology , genetics , antibiotics , bacteria

Mutations in ftsI, encoding penicillin-binding protein 3, can cause decreased β-lactam susceptibility in Haemophilus influenzae. Sequencing of ftsI from clinical strains has indicated interspecies recombination of ftsI between H. influenzae and Haemophilus haemolyticus. This study documented apparently unrestricted homologous recombination of ftsI between H. influenzae and H. haemolyticus in vitro. Transfer of ftsI from resistant isolates conferred similar but not identical increases in the MICs of susceptible strains of H. influenzae and H. haemolyticus.

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