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. 2000 Aug;66(8):3519–3527. doi: 10.1128/aem.66.8.3519-3527.2000

TABLE 6.

Activities of enzymes involved in the EMP pathway and the pathway leading to the biosynthesis of sugar nucleotides and EPS in cell extracts of S. thermophilus NRa

Enzyme         Avg activity (nmol ·  mg of cell protein−1 · min−1) ± SD
α-Phosphoglucomutase 154 ± 72
β-Phosphoglucomutase 0 ± 0
UDP-glucose pyrophosphorylase 18 ± 16
UDP-galactose 4-epimerase 52 ± 28
dTDP-glucose pyrophosphorylase 0 ± 1
Dehydratase 7 ± 2
Epimerase reductase 0 ± 0
Phosphoglucose isomerase 1,687 ± 56
6-Phosphofructokinase 2,064 ± 68
Fructose 1,6-bisphosphatase 0 ± 0
a

S. thermophilus NR, a nonropy strain, was grown in batch cultures in MRS broth with 0.22 M lactose at 42°C and at a controlled pH 6.2. Samples were taken at the end of the exponential growth phase.