confers_resistance_to_antibiotic cefoxitin amoxicillin confers_resistance_to_antibiotic cefalotin temocillin ticarcillin class A Mycobacterium tuberculosis bla beta-lactamase blaC antibiotic_resistance ARO:3007182 blaC blaC is a broad-spectrum class A beta-lactamase coded in the chromosome of Mycobacterium tuberculosis. It has been shown to hydrolyze a large number of beta-lactam antibiotics and is a major obstacle in the treatment of tuberculosis with such drugs.