[Concentration, purification, and isotopic labeling of sigma virus].

  • 21 May 1975
    • journal article
    • abstracts
    • Vol. 280  (19)
Abstract
Sigma virus has been concentrated by means of polyethylene-glycol and diafiltration; the latter method is more efficient in preserving infectivity. When purified on sucrose gradient, sigma banded in a sharp peak without any polydispersion. We are now able to label sigma genome with 3H-uridine in Drosophila cell cultures.

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