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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Heterogeneity of the procapsid of bacteriophage T3.

Like other double-stranded DNA bacteriophages, bacteriophage T3 assembles a DNA-free procapsid that subsequently packages the bacteriophage DNA. By agarose gel electrophoresis, it has been found that the T3 procapsid has a negative electrophoretic mobility (mu) that progressively increases in magnitude by as much as 3% after assembly of the procapsid. This increase is (i) caused by an increase in the solid support-free mu (muo) of the procapsid, not a decrease in its radius, and (ii) not prevented by either genetically or chemically (use of proflavine) blocking DNA packaging. However, inhibition of the formation of high-energy compounds with a mixture of cyanide and fluoride ions does block the time-dependent increase in the magnitude of muo. This increase appears to be accompanied by addition of an unidentified T3 protein to the procapsid.[1]


  1. Heterogeneity of the procapsid of bacteriophage T3. Serwer, P., Watson, R.H., Hayes, S.J. J. Virol. (1985) [Pubmed]
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