FIG. 2.
SDS-PAGE of the proteins associated with PHB granules isolated from wild-type M. extorquens AM1 and gap11 and gap20 mutants. Lanes 1 and 2, wild type grown on methanol and succinate, respectively; lane 3, gap11 mutant grown on succinate; lane 4, gap 20 mutant grown on succinate. Size markers (molecular masses in kilodaltons) are shown in the flanking lanes.