Diagram of t4 phage virus
A bacteriophage (/ b æ k ˈ t ɪər i oʊ f eɪ dʒ /), also known informally as a phage (/ f eɪ dʒ /), is a virus that infects and replicates within bacteria and archaea.The term was derived
from "bacteria" and the Greek φαγεῖν (phagein), "to devour".Bacteriophages are composed of proteins that encapsulate a DNA or RNA genome, and may have relatively simple or elaborate structures. Web Review of Todar's Online Textbook
of Bacteriology. "The Good, the Bad, and the Deadly" Tag words:bacteriophage, phage, prophage, T phage, lysogeny, lysogenic conversion, lambda. Enterobacteria phage λ (lambda phage, coliphage λ, officially Escherichia virus Lambda) is a bacterial virus, or bacteriophage, that infects the bacterial species Escherichia coli (E. coli).It was discovered by Esther
Lederberg in 1950 when she noticed that streaks of mixtures of two E. coli strains, one of which treated with ultraviolet light, was "nibbled and plaqued". T4 phage consists of three major components; head (or capsid), tail, and tail fibers ().Each of these are assembled by independent pathways and then joined together to form the infectious virion .Application of T4 phage to
vaccine development as a VLP platform mainly involves the head. Phage vB_EcoM_CBA120 (CBA120), isolated against Escherichia coli O157:H7 from a cattle feedlot, is morphologically very similar to the classic phage ViI of Salmonella enterica serovar Typhi. Until recently, little was known genetically or physiologically about the ViI-like phages, and none targeting E. coli have been described in the literature. Academia.edu is a platform for academics to share research papers. A virus is a unit of infectious genetic material smaller than any bacteria and embodying properties placing it on the borderline between life and
non-life. Viruses routinely infect the cells of both eukaryotes (such as animals, insects, and plants) and prokaryotes (such as bacteria). Viruses comprise genetic material contained within a protective protein shell, a composition that distinguishes Academia.edu is a platform for academics to share research papers. Quantitative kinetic analysis of the bacteriophage λ genetic network; http://www.pnas.org Terminal Region of the Gene: In bacteria transcription termination takes Figure 1. FimW Is a High-Affinity c-di-GMP Binding Protein in P. aeruginosa (A) Binding affinity and
stoichiometry of the c-di-GMP/FimW interaction was measured by isothermal titration calorimetry (ITC).