Figure 5.

In vivo transcription of indicated Staphylococcus epidermidis genes in the nose vs. skin of 11 healthy individuals (A–K). Transcripts were quantified in reference to the constitutively expressed gene gyrB and the ratio of transcription between nose and skin was plotted. Red columns indicate high expression in the nose and blue columns indicate high expression on skin. Category 1 genes heterogeneously expressed between individuals. Category 2 genes increased transcription on skin. Category 3 genes increased transcription during nasal colonization. Gene name abbreviations, see Supplementary Table 2.