Biochemical and Genetical Studies on Ribose Catabolism in Escherichia coli K 12

SUMMARY: A gene specifying ribokinase has been located on the Escherichia coli chromosome close to the reported position of an uncharacterized ribose*-negative mutation. This uncharacterized mutant has been shown to lack ribose permease and thus the genes for two enzymes of ribose catabolism are close together on the chromosome.