title: Specificity in in vitro complementation of  -galactosidase from mutant m15 of E. coli.
mesh_terms: D002850:Chromatography, Gel; D003488:Cyanogen Bromide; D004926:Escherichia coli / Q000201:enzymology*; D005690:Galactose; D005696:Galactosidases / Q000302:isolation & purification; D008722:Methods; D008970:Molecular Weight; D009154:Mutation; D010455:Peptides
chemical_list: D010455:Peptides; D005696:Galactosidases; D003488:Cyanogen Bromide; D005690:Galactose