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. 2003 Jul;85(1):612–622. doi: 10.1016/S0006-3495(03)74505-6

FIGURE 1.

FIGURE 1

Reaction mechanism of the glucose-PTS of E. coli. In reaction 5, glucose comes from the periplasm, is phosphorylated, and the resulting glucose-6-phosphate is released into the cytoplasm, making the PTS an active uptake system for the glucose moiety. IICBGlc is a cytoplasmic membrane protein. All other components of the reaction scheme are cytoplasmic.