early genetic and physiological evidence supported a mechanism whereby the phosphorylation state of an enzyme of the pts , the enzyme iii specific for glucose ( iiiglc ) , allosterically inhibits the activities of a number of permeases and catabolic enzymes , the lactose , galactose , melibiose , and maltose permeases , as well as glycerol kinase .
C0031715
phosphorylation
C0031727
pts