1988•PubMedRequires access
[Effect of the molecular weight of DNA on the effectiveness of plasmid transformation of E. coli K12].
E S Molchanova, N A Likhacheva, Timakova Nv, S Ia Ditiatkin, Il'iashenko Bn
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Abstract
The level of plasmid transformation and transfection by the high molecular mass DNA was studied for Escherichia coli mutants having increased efficiency of plasmid transformation by low molecular mass DNA. Decreased level of plasmid transformation and transfection registered in some mutants as compared to the one in wild type strain suggests the specificity of Escherichia coli cells penetration for DNA of different molecular mass.