Deoxyribonuclease treatment improves the homogeneity of single-stranded DNA preparations

The isolation of single-stranded (ss) phagemid DNA using standard protocols often results in impure preparations, which contain undesirable quantities of chromosomal and/or double-stranded (ds) phagemid DNA. Here we report a simple and efficient method for elimination of virtually all dsDNA by incub...

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Veröffentlicht in:BioTechniques. - 1993. - 22(1997), 1 vom: 07. Jan., Seite 105-8, 110
1. Verfasser: Aliev, T K (VerfasserIn)
Weitere Verfasser: Panina, A A, Korobko, V G, Varfolomeyev, S D
Format: Aufsatz
Sprache:English
Veröffentlicht: 1997
Zugriff auf das übergeordnete Werk:BioTechniques
Schlagworte:Technical Report Journal Article DNA, Single-Stranded DNA, Viral Deoxyribonucleases EC 3.1.-
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520 |a The isolation of single-stranded (ss) phagemid DNA using standard protocols often results in impure preparations, which contain undesirable quantities of chromosomal and/or double-stranded (ds) phagemid DNA. Here we report a simple and efficient method for elimination of virtually all dsDNA by incubation of phagemid viral particles with deoxyribonuclease I. In addition to analyzing the ratio of linear-to-circular topological forms of ssDNA after deoxyribonuclease I treatment, we verified that no decrease in transformation efficiency occurred and demonstrated that ssDNA molecules covered by capsid proteins remained intact following such treatment 
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