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Lactose
permease
Galactose-
proton
symporter
Melibiose
carrier protein
Melibiose
carrier protein
Melibiose
carrier protein
Galactokinase
Beta-
galactosidase
Putative beta-
phosphoglucomutase
Phosphoglucomutase-
1
Aldose
1-epimerase
Alpha-
galactosidase
Glucokinase
UDP-glucose
4-epimerase
Galactose-1-
phosphate
uridylyltransferase
UTP--glucose-1-
phosphate
uridylyltransferase_
Phosphoglucomutase-
1
Glucose-6-
phosphate
isomerase
putative aldose
1-epimerase
UTP--glucose-1-
phosphate
uridylyltransferase_
Phosphocarrier
protein HPr
Phosphocarrier
protein HPr
PTS system
glucose-
specific EIICB
component
Glucose-
specific
phosphotransferase
enzyme IIA
component
Phosphocarrier
protein HPr
Phosphocarrier
protein HPr
PTS system
glucose-
specific EIICB
component
Glucose-
specific
phosphotransferase
enzyme IIA
component
β-D-Glucose
6-phosphate
α-Lactose
α-Lactose
H
+
H
+
β-D-Galactose
β-D-Galactose
H
+
H
+
Melibiose
Melibiose
Lithium
Lithium
Melibiose
Na
+
Na
+
Melibiose
H
+
H
+
D-Galactose
ATP
ADP
H
+
Galactose
1-phosphate
H
2
O
β-D-Glucose
β-D-Glucose
6-phosphate
β-D-glucose
1-phosphate
Glucose
6-phosphate
α-D-glucose-1-
phosphate
H
2
O
β-D-Glucose
ATP
Hydrogen Ion
ADP
Uridine
diphosphate
glucose
Uridine
diphosphategalactose
α-D-glucose-1-
phosphate
Uridine
triphosphate
H
+
PP
i
Glucose
6-phosphate
Uridine
triphosphate
H
+
PP
i
α-D-Glucose
β-D-Glucose
Gluconeogenesis
from L-Malic
Acid
Cytoplasm
Inner Membrane
Periplasmic Space
Gram-Negative Bacteria
Outer Membrane
Plasmid
lacY
galP
melB
melB
melB
galK
lacZ
ycjU
PGM1
galM
melA
glk
galE
galT
galU
PGM1
pgi
yeaD
galU
ptsH
ptsH
ptsG
crr
ptsH
ptsH
ptsG
crr
β-D-Glucose
6-phosphate
α-Lactose
α-Lactose
Hydrogen Ion
Hydrogen Ion
β-D-Galactose
β-D-Galactose
Hydrogen Ion
Hydrogen Ion
Melibiose
Melibiose
Lithium
Lithium
Melibiose
Sodium
Sodium
Melibiose
Hydrogen Ion
Hydrogen Ion
D-Galactose
Adenosine
triphosphate
Adenosine
diphosphate
Hydrogen Ion
Galactose
1-phosphate
Water
β-D-Glucose
β-D-Glucose
6-phosphate
β-D-glucose
1-phosphate
Glucose
6-phosphate
α-D-glucose-1-
phosphate
Water
β-D-Glucose
Adenosine
triphosphate
Hydrogen Ion
Adenosine
diphosphate
Uridine
diphosphate
glucose
Uridine
diphosphategalactose
α-D-glucose-1-
phosphate
Uridine
triphosphate
Hydrogen Ion
Pyrophosphate
Glucose
6-phosphate
Uridine
triphosphate
Hydrogen Ion
Pyrophosphate
α-D-Glucose
β-D-Glucose
Gluconeogenesis
from L-Malic Acid