抄録
Ttransfection efficiency for permanent transfectants was improved in 3Y1 and its derivative cell lines. Transfection efficiency of various cell cycle ts mutant clones and an adenovirus transformed clone showed transfection efficiency at 10-4-10-5 and 10-5-10-6, respectively, by calcium phosphate precipitation method including various modifications. The efficiency was improved up to 10-3 by electroporation in all these clones as well as parental 3Y1.
