From: Improvement of Escherichia coli production strains by modification of the phosphoenolpyruvate:sugar phosphotransferase system
Transporter
K m
V max
Energetic costsa
IIGlc complex
3–10 μM
126 μmol min-1 g-1
1 PEP
IIMan complex
15 μM
72 μmol min-1 g-1
GalP
10.2 μM
15.6 μmol min-1 g-1
1 H+ + 1 ATP
MglABC
N.D
N.D.
2 ATP
Glf
4.1 mM
75 μmol min-1 g-1
1 ATP