Effect of deregulation of repressor-specific carbon catabolite repression on carbon source consumption in Escherichia coli

Applied Biological Chemistry

Table 1 Fermentation parameters obtained from the cultures of the wild-type E. coli W3110 strain and its mutants GR2, GR2P, and GR2PZ in R/2 medium containing either 6 g/L glucose or 6 g/L galactose

Strain	Maximum specific growth rate (μ_max; /h)		Specific sugar consumption rate (g/gDCW/h)^a
Strain	Glucose fermentation	Galactose fermentation	Glucose	Galactose
W3110	0.4888 ± 0.05	0.3470 ± 0.00	0.9793 ± 0.08	0.7127 ± 0.04
GR2	0.5098 ± 0.01	0.3643 ± 0.01	1.1777 ± 0.11	0.8644 ± 0.07
GR2P	0.2989 ± 0.00	0.3057 ± 0.01	0.5922 ± 0.03	0.3110 ± 0.02
GR2PZ	0.2196 ± 0.01	0.1649 ± 0.01	0.5344 ± 0.05	ND

ND not determined
^aSpecific sugar consumption rate (g/gDCW/h) was calculated from the sugar consumption from 0 h to an endpoint showing a rapid consumption