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pubmed:abstractText |
Simian virus 40 transcriptional complexes could be extracted from CV1 cells late in infection and separated from the bulk of inactive viral chromatin. Sucrose gradient sedimentation, cesium sulfate equilibrium density gradient centrifugation, and electron microscopy indicated that the viral transcriptional complexes corresponded to at least 0.5 to 1% of the viral minichromosomes extracted, about 5,000 copies per cell.
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