Prof. Dr. Andreas Möglich (IfB, Berlin) for providing the pDawn plasmid and advice for deciding on a system for light induction.

Prof. Dr. Peter Chien (University of Massachusetts, Amherst) for providing a Plasmid with CcSspB, ssrA tagged proteins and advice on the ClpXP degradation system.

Prof. Dr. Bernd Bukau (ZMBH, Heidelberg) for providing a plasmid with EcSspB

Prof. Dr. Robert T. Sauer (MIT, Cambridge) for providing plasmids with the split SspB system and a SspB deficient bacterial strain