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Transcription of protease-encoding genes during colonization of human skin. Transcripts were quantified in reference to the transcription of gyrB in skin samples colonized with S. aureus. (A) Relative transcription of the metalloprotease aureolysin (aur), the serine proteases sspA (V8 protease) (B) and splA (C), and the cysteine proteases staphopain A and B [scpA (D) and sspB (E)].
