A DNA fragment with an alpha-phosphorothioate nucleotide at one end is asymmetrically blocked from digestion by exonuclease III and can be replicated in vivo.
2'-Deoxyadenosine 5'-O-(1-thiotriphosphate) (dATP[alpha S]) was introduced into the 3' ends of DNA restriction fragments with Escherichia coli DNA polymerase I to give phosphorothioate internucleotide linkages. Such "capped" 3' ends were found to be resistant to exonuclease III digestion. Moreover,...
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| Publicado no: | Proc Natl Acad Sci U S A |
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| Principais autores: | , , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
National Academy of Sciences
1981
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC349264/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/6278470/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.78.12.7350 |
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