title: On the resolution of polypeptides by isoelectric focusing in polyacrylamide gels in the presence of urea and nonidet-p40.
mesh_terms: D000199:Actins; D012321:DNA-Directed RNA Polymerases; D003902:Detergents; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods*; D004926:Escherichia coli / Q000201:enzymology; D007525:Isoelectric Focusing / Q000379:methods*; D010455:Peptides; D012967:Sodium Dodecyl Sulfate; D014508:Urea
chemical_list: D000199:Actins; D003902:Detergents; D010455:Peptides; D012967:Sodium Dodecyl Sulfate; D014508:Urea; D012321:DNA-Directed RNA Polymerases