Abstract
When human adenovirus type 2 DNA was extracted from the virions, and the sedimentation profile of the DNA-protein complex in a linear sucrose gradient was analyzed by the nitrocellulose filter binding assay, it was found that 90–95% of adenovirus 2 DNA molecules was tightly associated with the protein(s). The analyses of the binding site of the protein(s) on the DNA by using the restriction endonucleases suggested that the protein(s) interact with the DNA at or near the termini of the viral genome. The stability of the linkage between the DNA and the protein(s) was tested in the presence of various reagents. From the available data, it is suggestive that the protein(s) is linked to the DNA covalently.
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