confers_resistance_to_antibiotic cefoxitin carbenicillin oxacillin ceftriaxone piperacillin confers_resistance_to_antibiotic ampicillin mezlocillin cefixime blaS blaS1 blaS1 ARO:3005111 Predominant beta-lactamase in Mycolicibacterium smegmatis. antibiotic_resistance