Complementation of phenotype in <i>E</i>. <i>coli</i> dnaBts achieved by supplying DnaB from <i>R</i>. <i>erythropolis</i> PR4 fused to GFP via plasmid.

<p>The wild type <i>E</i>. <i>coli</i> could not grow at 37°C whereas the one containing <i>R</i>. <i>erythropolis</i> dnaB-GFP could grow at 37°C.</p>