confers_resistance_to_antibiotic tetracycline major facilitator superfamily (MFS) antibiotic efflux pump confers_resistance_to_antibiotic tet(G) tet(G) antibiotic_resistance ARO:3000174 tetG TetG is a tetracycline efflux protein found in Gram-negative bacteria. The encoding gene is found in both chromosomal and plasmid DNA where it is frequently linked to the floR, sul1, and cmlA9 genes which encode proteins that can confer florfenicol/chloramphenicol, sulfamethoxazole, and chloramphenicol resistance, respectively.