Phage

A phage chromosome inserted as part of the linear structure of the DNA chromosome of a bacterium. A temperate phage integrated into the host chromosome.
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Bacteriophage Genetics
T2 and its close relative T4 are viruses that infect the bacterium E. coli. The infection ends with destruction (lysis) of the bacterial cell so these viruses are examples of bacteriophages ("bacteria eaters").
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The phage genome is still inserted in the host genome and needs excision for DNA replication to occur. The sib section of the normal L promoter transcript is, however, no longer included in this reading frame (see diagram).
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bacteriophage
a type of virus that destroys bacteria; also called phage
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Bacteriophage
An E. Coli virus. Commonly used bacteriophases in biology labs are T4, M13 and lambda phages.
Related ...
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Phages infect only specific bacteria. Some phages are virulent, meaning that upon infecting a cell they immediately begin reproducing, and within a short time lyse (destroy) the cell, releasing new phages.
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Phage display libraries represent a relatively easy way to generate binding ligands against a vast number of different targets.
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Phage fd K is "restricted" in its growth on E.coli B. Phage fd K is " modified" during growth on E.coli B.
Modification consists of the methylation of a small number of specific DNA bases.
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phage - viruses for microorganisms
photosynthesis - use of light to carry out reductive biochemical processes necessary for life. Pigments capture light energy in much the same way as an antenna captures a radio or tv signal.
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Phage: A virus which infects a bacterial cell. Also called a Bacteriophage.
Purine: A nitrogen- containing, double ring compound that occurs in nucleic acids. In DNA molecules, the purines are adenine and guanine.
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Phage
A virus for which the natural host is a bacterial cell. Used as a vector for cloning segments of DNA.
Genome ...
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Phage head
The capsid which contains the phage nucleic acid. Often used to describe icosahedral capsid. The pressure inside an icosahedral head from a typical dsDNA phage is about 60 ATM.
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phage - virus that infects bacteria; altered phage can be used as cloning vectors. (short for bacteriophage - "bacteria eater") ...
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PHAGE - See BACTERIOPHAGE.
PHENOTYPE - The appearance of other characteristics of an organism resulting from the interaction of its genetic constitution with the environment.
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Phage (particle). See Bacteriophage.
Phenotype. The observable characteristics of an organism, the expression of gene alleles (genotype) as an observable physical or biochemical trait. See Genotype.
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Phage: A virus for which the natural host is a bacterial cell. Used in the laboratory as a cloning vector. (see bacteriophage) ...
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macrophage migration inhibitory factor (MIF) Cytokine released by sensitized lymphocytes that tends to inhibit migration of macrophages in the immediate vicinity, ...
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macrophage
(mak-roh-fage) [Gk. makros, large + phagein, to eat]
An amoeboid cell that moves through tissue fibers, engulfing bacteria and dead cells by phagocytosis.
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bacteriophage -- Virus which infects and destroys a bacterial host. Some phages, however, will incorporate their DNA into that of their host, and remain dormant for an extended period.
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Bacteriophage lambda: A virus which infects E. coli , and which is often used in molecular genetics experiments as a vector, or cloning vehicle.
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The bacteriophage becomes attached to the bacteria and its genetic material then enters the bacterial cell. The bacterial cell treats the viral genetic material as if it was its own and subsequently manufactures more virus particles.
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Other bacteriophage can infect a host and insert their DNA into the host DNA.
Under certain conditions the viral DNA can detach and direct replication of new virus, eventually killing the host cell.
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Bacteriophage (phage or phage particle). A virus that in- fects bacteria. Altered forms are used as vectors for cloning DNA. Bacteriostat. A class of antibiotics that prevents growth of bacterial cells. Bacterium.
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Bacteriophage -- a virus whose host is a bacterium; commonly called phage. Barr body -- the condensed single X-chromosome seen in the nuclei of somatic cells of female mammals.
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phage bacteriophage. phenotype The observable characteristics of an organism.
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Bacteriophage Bacterial virus. Lambda bacteriophage is the basis of many E. coli vectors which are used for cDNA and genomic DNA libraries. Filamentous bacteriophages are used to produce single-stranded DNA for sequencing or in vitro mutagenesis (eg.
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Transduction by bacteriophage
for transferring genes from one bacterium to another; this time the transfer is mediated by bacteriophages (bacterial viruses, also called phages) (Fig. 2).
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Periodically they assayed cells sampled from the chemostat for resistance to infection by bacteriophage T5 and calculated the density of T5 resistant cells in the culture.
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coliphage
lambda). MHC class I transmembrane domain length variation, frequent gene conversions and deletions in the MHC-linked 21-hydroxylase gene (CYP21), gene conversions within the MHC class II genes in mice and humans, ...
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In DNA cloning, the plasmid or phage chromosome used to carry the cloned DNA segment.
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plaque
A clear area in a lawn of a bacterial colony, where the bacteria have undergone lysis due to bacteriophage infection.
plasma membrane
The outer boundary of cells which is only visible with an electron microscope.
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To enhance this defence strategy further we are investigating the value of directed evolution to improve the characteristics of protease inhibitors. We describe the approaches of DNA shuffling and phage display that are being used to create and ...
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