Fig. 1From: Identification of nucleoid associated proteins (NAPs) under oxidative stress in Staphylococcus aureus a The relative DNA amount under oxidative stress in the sucrose gradient detected by DAPI fluorescence. b SDS-PAGE of the whole cell lysate (Whole), the envelope fraction (Env), the nucleoid fraction (Nuc), and the top fraction of the sucrose gradient (Top). The proteins were visualized by silver staining. Sizes of the molecular weight markers are indicated in kDa on the leftBack to article page