title: Measurement of the differences in electrophoretic mobilities of individual molecules of E. coli beta-galactosidase provides insight into structural differences which underlie enzyme microheterogeneity.
mesh_terms: D000818:Animals; D019075:Electrophoresis, Capillary / Q000379:methods; D004926:Escherichia coli / Q000201:enzymology*; D029968:Escherichia coli Proteins / Q000737:chemistry* / Q000378:metabolism; D015203:Reproducibility of Results; D001616:beta-Galactosidase / Q000737:chemistry* / Q000378:metabolism
chemical_list: D029968:Escherichia coli Proteins; D001616:beta-Galactosidase