confers_resistance_to_antibiotic ATP-binding cassette (ABC) antibiotic efflux pump confers_resistance_to_antibiotic microcin J25 YojI ARO:3003952 YojI YojI mediates resistance to the peptide antibiotic microcin J25 when it is expressed from a multicopy vector. YojI is capable of pumping out microcin molecules. The outer membrane protein TolC in addition to YojI is required for export of microcin J25 out of the cell. Microcin J25 is thus the first known substrate for YojI. antibiotic_resistance