-
Article
Book reviews
-
Article
Protection of foreign DNA against host-controlled restriction in bacterial cells
Foreign F′lac plasmid DNA which is introduced into potentially restricting E. coli recipient cells can be protected from restriction by preinfecting the recipient cells with UV-inactivated T3 or T7 bacteriophages...
-
Article
Host-dependent modification of bacteriophage T7 and SAMase-negative T3 derivatives affecting their adsorption ability
When passaging phage T7 and SAMase-negative T3 mutants betweenE. coli strains with identical (EcoB) or without (EcoO) DNA host specificity, phenotypically a host-controlled modification and restriction is observe...
-
Article
Active protection by bacteriophages T3 and T7 againstE. coli B-and K-specific restriction of their DNA
The bacteriophages T3 and T7 are not modified and restricted byE. coli strains with different host specificity (E. coli B, K, O) in vivo. The phages code for a gene product with the ability toovercomeclassicalres...