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Research in Microbiology, 2003
Insertion of viral DNA into host chromosomes is an ancient process essential for propagation in the proviral form. Many present-day bacteriophages insert at specific sites on the host chromosome. Insertion by two coliphage families (lambdoid and P4-like) is compared. For both families, insertion sites frequently lie within tRNA genes.
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Insertion of viral DNA into host chromosomes is an ancient process essential for propagation in the proviral form. Many present-day bacteriophages insert at specific sites on the host chromosome. Insertion by two coliphage families (lambdoid and P4-like) is compared. For both families, insertion sites frequently lie within tRNA genes.
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Prophage mapping by transformation
Virology, 1969Abstract A procedure is described for the preparation and isolation of defectively lysogenic strains of Hemophilus influenzae carrying prophage HP1. A quantitative technique for the assay of wild-type lysogenic transformants has been developed. A number of defective prophage mutants have been mapped by transformation in reciprocal two-point crosses ...
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Prophage distribution in coryneform bacteria
Research in Microbiology, 1995Four temperate bacteriophages of corynebacteria were isolated after UV induction. Phages phi 304L and phi 304S were both induced from Corynebacterium glutamicum ATCC 13058, ATCC 21488, ATCC 21649 and ATCC 21650 strains, and have no known sensitive host. Phages phi 15 and phi 16 were both induced from ATCC 14020 and ATCC 21792.
S, Moreau +7 more
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Prophages and Cryptic Prophages
1998A large group of natural bacteriophages (called temperate) can establish a permanent relationship with their hosts (lysogeny), where most viral functions are repressed and the phage genome (prophage) is transmitted vertically from mother to daughters at cell division.
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Defective prophages of bacteriophage Mu
Molecular and General Genetics MGG, 1976A method is described for the isolation of thermoinducible defective Mu lysogens. Four of these defective lysogens were studied more extensively. By marker-rescue experiments it was shown that the strain harbouring the smallest defective prophage contains the immunity gene cts and the genes A and B; the strain with the largest defective prophage still ...
G C, Westmaas +2 more
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Genetic mapping of prophage Mu
Virology, 1973Abstract The gene order of several independently isolated Mu prophages has been determined by deletion mapping. The prophages in which deletions were produced were located in the lacI gene, the lacZ gene, and the trp operon of Escherichia coli . The Mu deletions were tested for marker rescue against a set of sixteen Mu amber mutants.
A I, Bukhari, M, Metlay
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Mechanism of prophage P1b induction
Virology, 1964Abstract An analysis of the events associated with prophage induction has been made using a lysogenic thymine-requiring mutant of Escherichia coli, B3 (P1b). 1. 1. As a means of comparing the “repression” of the phage and enzyme systems, simultaneous analyses were made of the kinetics of the induction of the prophage and the enzyme β ...
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Prophage substitution and prophage loss from superinfected Escherichia coli recA(P1) lysogens
Journal of Virology, 1979It is shown that the plasmid prophage P1 can be displaced by a superinfecting P1 phage in Escherichia coli recA(P1) lysogens. Six widely separated phage markers were used to distinguish between residual recombination and total substitution. It is further shown that superinfection of recA lysogens can lead to loss of both phage (curing).
E, Meurs, R, D'Ari
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2005
Abstract At the time of this writing, the GenBank phage database comprises 200 complete phage genome sequences. An equivalent number of phage sequences were passively acquired as prophages in bacterial genome sequencing projects. The scientific value of these prophage sequences was only recently recognized (13, 14).
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Abstract At the time of this writing, the GenBank phage database comprises 200 complete phage genome sequences. An equivalent number of phage sequences were passively acquired as prophages in bacterial genome sequencing projects. The scientific value of these prophage sequences was only recently recognized (13, 14).
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