Structure of Bacillus subtilis bacteriophage SPP1 DNA in relation to its transfection activity.
The availability of a detailed restriction map of SPP1 DNA allowed defined manipulations of such molecules. These were performed to investigate structural requirements for SPP1 transfection. (i) The...
Maturation of bacteriophage SPPI is imprecise. Although terminally redundant and circularly permuted molecules were always formed, individual molecules varied by more than 200 base pairs from each...
Weston, A, Brown, M G, Perkins, H R, Saunders, J R, Humphreys, G O
Plasmid deoxyribonucleic acid (DNA) was tightly bound to cells of Escherichia coli at 0 degrees C in the presence of divalent cations. During incubation at 42 degrees C, 0.1 to 1% of this DNA became...
Molecular Studies of R Factor Compatibility Groups
Grindley, N. D. F., Humphreys, G. O., Anderson, E. S.
Molecular studies of R factors of six groups, FII, I1, I2, N, B, and H, defined on the basis of compatibility, support the conclusions drawn from genetic studies. In general, R factors of a given...
Interactions of Group H Resistance Factors with the F Factor
Smith, H. R., Grindley, N. D. F., Humphreys, G. O., Anderson, E. S.
The four R factors described in this paper form a single compatibility group which has been previously designated group H. Recombination was demonstrated between any pair of the plasmids TP117, 123,...
Nature of transforming deoxyribonucleic acid in calcium-treated Escherichia coli.
Strike, P, Humphreys, G O, Roberts, R J
A study of the reactivation of ultraviolet-irradiated plasmid and phage deoxyribonucleic acid molecules after transformation into Escherichia coli strains indicated that, when double-stranded...
Structure of Bacillus subtilis bacteriophage SPP1 DNA in relation to its transfection activity.
The availability of a detailed restriction map of SPP1 DNA allowed defined manipulations of such molecules. These were performed to investigate structural requirements for SPP1 transfection. (i) The...
Maturation of bacteriophage SPPI is imprecise. Although terminally redundant and circularly permuted molecules were always formed, individual molecules varied by more than 200 base pairs from each...
Weston, A, Brown, M G, Perkins, H R, Saunders, J R, Humphreys, G O
Plasmid deoxyribonucleic acid (DNA) was tightly bound to cells of Escherichia coli at 0 degrees C in the presence of divalent cations. During incubation at 42 degrees C, 0.1 to 1% of this DNA became...
Nature of transforming deoxyribonucleic acid in calcium-treated Escherichia coli.
Strike, P, Humphreys, G O, Roberts, R J
A study of the reactivation of ultraviolet-irradiated plasmid and phage deoxyribonucleic acid molecules after transformation into Escherichia coli strains indicated that, when double-stranded...
Molecular Studies of R Factor Compatibility Groups
Grindley, N. D. F., Humphreys, G. O., Anderson, E. S.
Molecular studies of R factors of six groups, FII, I1, I2, N, B, and H, defined on the basis of compatibility, support the conclusions drawn from genetic studies. In general, R factors of a given...
Interactions of Group H Resistance Factors with the F Factor
Smith, H. R., Grindley, N. D. F., Humphreys, G. O., Anderson, E. S.
The four R factors described in this paper form a single compatibility group which has been previously designated group H. Recombination was demonstrated between any pair of the plasmids TP117, 123,...