Characterized functions of hypothetical genes identified by Tn-seq important for pathgoenesis of Staphylococcus aureus pneumonia

To identify new genetic elements required for S.aureus pathogenesis, we performed a transposon sequencing in the context of acute murine penumonia. We screened conditionally essential genes identified by Tn-seq and confirmed 6 previously uncharacterized genes were important during infection. As further study, we performed RNA-seq to identify uncharacterized genes. 6 hypothetical mutants (SAUSA300_1720, SAUSA300_1902, SAUSA300_1650, SAUSA300_2068, SAUSA300_0903 and SAUSA300_0917 ) were grown in LB broth up to 1.0 (OD600nm). Bacterial RNA was extracted by the EZRNA isolation kit (Omega biotech) and then RNA-seq performed