Bacteriophage SPP1 DNA replication strategies promote viral and disable host replication in vitro

Bacteriophage SPP1 DNA replication strategies promote viral and disable host replication in vitro

Complex viruses that encode their own initiation proteins and subvert the host's elongation apparatus have provided valuable insights into DNA replication. Using purified bacteriophage SPP1 and Bacillus subtilis proteins, we have reconstituted a rolling circle replication system that recapitulates genetically defined protein requirements. Eleven proteins are required: phage-encoded helicase (G4...

Bacteriophage T 7 DNA Replication in Vitro STIMULATION OF DNA

Four T7 products, DNA polymerase, gene 4 protein, RNA polymerase, and DNA binding protein, have been purified from phage-infected cells. It has been previously shown (Hinkle, D. C., and Richardson, C. C. (1975) J. Biol. Chem 250, 5523-5529; Kolodner, R., and Richardson, C, C. (1978) J. Biol. Chem 253, 574-584) that two T7 products, DNA polymerase and gene 4 protein, catalyze extensive synthesis...

DNA of Bacillus subtilis bacteriophage SPP1: physical mapping and localization of the origin of replication.

The genome of Bacillus subtilis bacteriophage SPP1, a linear, 28.5-megadalton DNA duplex, was mapped by analysis with the restriction endonucleases endo R.Sal I, Sma I, Xba I, Bgl I, Bgl II, and EcoRI. The SPP1 genome, like that of the Salmonella typhimurium phage, P22, was found to be a terminally repetitious, circularly permuted molecule. 6-(p-Hydroxyphenylazo)uracil, a selective, reversible ...

Effect of Host Src-kinase Inhibition on Replication of Coxsackievirus B3 in vitro

Bacteriophage Spp1 Entry into the Host Cell