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The reference genome of Bacillus subtilis was first sequenced and annotated 25 years ago. At that time, some 42% of the coding sequences could not be assigned a function. In the present annotated update, 15% of the CDS remain functionless. An important contribution of newly identitied functions has been attributed to nucleic acid modifying enzymes and ...
Erhard Bremer+10 more
wiley +1 more source
Mimicking prophage induction in the body: induction in the lab with pH gradients [PDF]
The majority of bacteria within the human body are lysogens, often harboring multiple bacteriophage sequences (prophages) within their genomes. While several different types of environmental stresses can trigger or induce prophages to enter into the ...
Taylor Miller-Ensminger+3 more
doaj +2 more sources
Lysogenic pneumococci and their bacteriophages [PDF]
About half of pneumococci recovered from pediatric patients and one-third of isolates from adult patients yielded bacteriophages active against one or more of four noncapsulated indicator strains of pneumococcus. Strains of capsular types most frequently causing pediatric infections were associated with lysogeny.
openaire +3 more sources
Lysogenic Conversion of Rhizobium trifolii [PDF]
Surmmary Rhizobium trifolii strain SU 297, when lysogenized with phage 7 or its clear-plaque mutant 7cr, underwent lysogenic conversion that resulted in loss of ability to adsorb phages 7 and 7cr and the related phage 8. The same conversion was reflected in changes in the surface of the bacterium by which a somatic antigen, characteristic of the parent
Yvonne M. Barnet, J. M. Vincent
openaire +2 more sources
The Phenomenon of Lysogenicity in Staphylococci [PDF]
SUMMARY: Of thirty coagulase-positive staphylococci, twenty-seven proved to be lysogenic. Free phage was found in filtrates of 4-5 hr. broth cultures of the lysogenic strains. The phages from six of these strains were examined by estimation of the amounts occurring in filtrates, for serology and for their range of lytic reactions with indicator strains.
openaire +3 more sources
Vectors carrying DNA modified in a mammalian host often do not propagate efficiently in E. coli due to bacterial restriction systems (1) capable of degrading DNA bearing a foreign methylation pattern. Restriction activity has been shown to interfere with
E. Gunther, N. Murray, P. Glazer
semanticscholar +1 more source
THE ESTABLISHMENT OF LYSOGENICITY IN ESCHERICHIA COLI [PDF]
When a population of sensitive bacteria is exposed to infection by a temperate phage, a large number of cells are not lysed and give rise to colonies containing lysogenic cells. Some of the factors influencing the probability that an infected cell of Escherichia coli, strain K12S, will give a lysogenic response are reported here.
openaire +4 more sources
High diversity in the regulatory region of Shiga toxin encoding bacteriophages
Background Enterohemorrhagic Escherichia coli (EHEC) is an emerging health challenge worldwide and outbreaks caused by this pathogen poses a serious public health concern.
Annette Fagerlund+3 more
doaj +1 more source
Non-conventional therapeutic technique to replace CRISPR bacteria from biofilm by inducible lysogen
Bacteriophage can be an effective means of regulating bacterial populations when conditions allow phage invasion of bacterial colonies. Phage can either infect and lyse a host cell, or insert their DNA into the host cell genome; the latter process is ...
Qasim Ali
doaj +1 more source
Bacteriophage 434 Hex Protein Prevents RecA-Mediated Repressor Autocleavage
In a λimm434 lysogen, two proteins are expressed from the integrated prophage. Both are encoded by the same mRNA whose transcription initiates at the PRM promoter. One protein is the 434 repressor, needed for the establishment and maintenance of
Paul Shkilnyj+2 more
doaj +1 more source