Transcription in vitro from a DNA template containing apurinic sites

Autor: Margaret D. Mamet-Bratley
Rok vydání: 1974
Předmět:
Zdroj: Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis. 340:237-243
ISSN: 0005-2787
DOI: 10.1016/0005-2787(74)90269-x
Popis: T7 DNA containing a limited number of apurinic sites shows reduced template activity for RNA synthesis in vitro. Initiation specificity remains unchanged by the presence of apurinic sites. Quantitative analysis shows that depurination is much more detrimental than alkylation to the template activity of DNA. Such a result is in accord with phage-lethality studies which show, for monofunctional alkylating agents, that depurination is much more toxic than alkylation.
Databáze: OpenAIRE