title: [Competency of Escherichia coli cells. II. Detection of competency factor activity in cultural fluid of Escherichia coli X7026. Purification and concentration of the preparation].
mesh_terms: D004269:DNA, Bacterial / Q000302:isolation & purification*; D004926:Escherichia coli / Q000032:analysis*; D014170:Transformation, Genetic
chemical_list: D004269:DNA, Bacterial
vernacular_title: Kompetentnost' u kletok Escherichia coli. Soobshchenie II. Vyiavlenie aktivnosti faktora kompetentnosti v kul'tural'noĭ zhidkosti Escherichia coli X7026. Ochistka i kontsentratsiia preparatov