Fig. 1From: Enhancing butanol tolerance of Escherichia coli reveals hydrophobic interaction of multi-tasking chaperone SecBScreening result of E. coli strains overexpressed with chaperones identified by genome mining. μ denotes specific growth rate between 0 and 2 h (Eq. 1), T denotes tolerance to butanol (Eq. 2). All experiments were performed in triplicate. Each dot represents one engineered strain. Green dots: SecB, ClpB and YcdY. Growth curves of all the engineered strains are available in the Additional fileBack to article page