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MinE-Gfp rings and polar zones. Strains RC1/pFX7 [Δmin/Plac-minD minE∷gfp] (a) and RC1/pFX37 [Δmin/Plac-minE∷gfp] (b) were grown for 4 h in the presence of 10 μM IPTG. Cells were then fixed and examined by fluorescence microscopy. R, MinE ring; PZ, MinE polar zone.
