Results 11 to 20 of about 12,447 (204)
Molecular and biochemical analysis of the system regulating the lytic/lysogenic cycle in the pneumococcal temperate phage MM1 [PDF]
FEMS Microbiology Letters, 2003 The temperate phage MM1 forms stable lysogens in Streptococcus pneumoniae. We report here the first characterization of the lysogenic control region in Pneumococcus which contains two functional divergent promoters (P(R) and P(L)). MM1 encodes a 14-kDa cI protein (CI) that appears to be responsible for maintaining the lysogenic state in Pneumococcus ...
Virginia, Obregón +3 more
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Virus Research, 2014 Expression of bacteriophage A2-encoded cro in Escherichia coli gives rise to two co-linear polypeptides, Cro and Cro*, which were proposed to form a regulatory tandem to modulate the frequency with which the phage would choose between the lytic and the lysogenic cycles. In this communication, it is reported that Cro is the canonical product of the gene
Escobedo, Susana +4 more
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Environmental Microbiology, 2013 Summary Changes in environmental conditions and prokaryote physiology can strongly affect the dynamics of both the lysogenic and lytic bacteriophage replication cycles in aquatic systems. However, it remains unclear whether it is the nature, amplitude or frequency of these changes that alter the phage replication ...
Maurice, C. F. +3 more
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Virology, 1999 Lysogenic induction of temperate bacteriophage A2 of Lactobacillus casei is controlled by the action of its cI and cro products at the phage operator region. Three 20-bp inverted repeated DNA segments (subsites O1, O2, and O3) and the two divergent (PL and PR) promoters were mapped within the 153-bp operator region.
Ladero Losada, Víctor Manuel +3 more
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Characterization of Temperate LPS-Binding Bordetella avium Phages That Lack Superinfection Immunity
Microbiology Spectrum, 2023 Bordetella avium causes a highly infectious upper respiratory tract disease in turkeys and other poultry with high economic losses. Considering the antimicrobial resistance crisis, bacteriophages (phages) may be an alternative approach for treating ...
Dorothee Serian +7 more
doaj +1 more source
Insights into the mechanism of action of the arbitrium communication system in SPbeta phages
Nature Communications, 2022 The arbitrium system is a peptide-based communication system to coordinate the lysis-lysogenic cycle of phages infecting bacteria. Here Gallego del Sol et al. provide the crystal structure of Aim-receptor of Katmira phage infecting B.
Francisca Gallego del Sol +4 more
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Viruses, 2022 Phages are viruses that infect bacteria. They affect various microbe-mediated processes that drive biogeochemical cycling on a global scale. Their influence depends on whether the infection is lysogenic or lytic.
Menghui Zhang +4 more
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Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling [PDF]
Applied and Environmental Microbiology, 2012 ABSTRACT Lytic and lysogenic viral infection was investigated throughout the Southern Ocean at sites spanning the sub-Antarctic zone, the Antarctic Circumpolar Current, and an Antarctic continental sea. Higher lytic virus activity was recorded in the more productive sub-Antarctic zone than in the iron-limited waters of the ...
Evans, C., Brussaard, C.P.D.
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STAR Protocols, 2020 Summary: The gut microbiome is dominated by lysogens, bacteria that carry bacterial viruses (phages). Uncovering the function of phages in the microbiome and observing interactions between phages, bacteria, and mammalian cells in real time in specific ...
Katie Bodner +2 more
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Modulation of Lactobacillus casei bacteriophage A2 lytic/lysogenic cycles by binding of Gp25 to the early lytic mRNA [PDF]
Molecular Microbiology, 2015 SummaryThe genetic switch of Lactobacillus casei bacteriophage A2 is regulated by the CI protein, which represses the early lytic promoter PR and Cro that abolishes expression from the lysogenic promoter PL. Lysogens contain equivalent cI and cro‐gp25 mRNA concentrations, i.e., CI only partially represses PR, predicting a lytic cycle dominance. However,
Carrasco, Begoña +3 more
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