title: Staphylococcus aureus Tn-Seq under acid stress
design: S. aureus Tn libraries were grown for 10 generations in TSB neutral (sample 1) TSB pH 5.5 (Sample 2), TSB pH 4.5 (sample 3) or for 17 generations in TSB neutral (sample 4), TSB  pH 5.5 (sample 5), TSB 4.5 (sample 6)