Letter: Electron microscopic observation of DNA condensates at low pH values |
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Authors: | E Dore C Frontali S Notargiacomo |
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Affiliation: | Laboratori di Fisica Institute Superiore di Sanità Roma, Italy |
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Abstract: | Coliphage T2 DNA in sufficiently low concentration forms a monomolecular conderisate in acidic (pH 1.9) saline (0.3 m) solution. Electron microscopic observations of acidic monolayered DNA-cytochrome c films confirm previous indirect evidence concerning the dimensions of the in vitro condensation products and their ability to increase and compose confluent aggregates. The phenomena described here suggest that hydrophobic interactions may play a role in both the condensation and aggregation processes. |
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