[On the presence of proteins related to beta-galactosidase in certain mutants of Escherichia coli].
D004926:Escherichia coli / Q000737:chemistry*; D006026:Glycoside Hydrolases / Q000737:chemistry; D006296:Health Services; D001616:beta-Galactosidase
D006026:Glycoside Hydrolases; C019822:carbohydrase; D001616:beta-Galactosidase
CARBOHYDRASES/chemistry; ESCHERICHIA COLI/chemistry