Summary of the biochemical characterization of the wildtype and mutant CggR variants. KD ratio change indicates the ratio between the KD of the CggR mutant variant and the one of the wildtype. A plus sign indicates desired characteristics achieved in the mutants; a minus sign indicates undesired effects of the mutations. The mutant highlighted with grey background is the one we selected for further analyses, as this mutant had the desired characteristics with regards to all three criteria. 