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2494 results about "Bacteriophage" patented technology

A bacteriophage (/bækˈtɪərioʊfeɪdʒ/), also known informally as a phage (/feɪdʒ/), 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 structures that are either simple or elaborate. Their genomes may encode as few as four genes (e.g. MS2) and as many as hundreds of genes. Phages replicate within the bacterium following the injection of their genome into its cytoplasm.

Polyclonal antibody composition for treating allergy

A pharmaceutical composition for treating allergy is described. The composition comprises as an active ingredient a recombinant polyclonal antibody or a mixture of different monoclonal antibodies capable of reacting with or binding to an allergen together with one or more pharmaceutically acceptable excipients. The composition may be used topically as a solution, dispersion, powder, or in the form of microspheres. The polyclonal antibody is preferably a recombinant polyclonal antibody produced by phage display technology. The pairing of specific immunoglobulin variable region light chain and heavy chain maintained from the original polyclonal immune response or selected by panning using the allergen in question is preferably maintained by bulk transfer of the pairs into an expression vector.
Owner:SYMPHOGEN AS

Reporter plasmid phage packaging system for detection of bacteria

The invention is related to a transducing particle that comprises a bacteriophage coat and a DNA core that comprises plasmid DNA comprising: a) a host-specific bacteriophage packaging site wherein the packaging site is substantially in isolation from sequences naturally occurring adjacent thereto in the bacteriophage genome, b) a reporter gene, c) a bacteria-specific promoter operably linked to said reporter gene, d) a bacteria-specific origin of replication, and optionally e) an antibiotic resistance gene. The invention includes phage transducing particles, methods of making transducing particles, and methods of using the transducing particles in bacterial detection.
Owner:UNITED STATES OF AMERICA

Site-specific serine recombinases and methods of their use

The present invention provides a method for obtaining site-specific recombination in a eukaryotic cell, the method comprising providing a eukaryotic cell that comprises a first recombination attachment site and a second recombination attachment site; contacting the first and second recombination attachment sites with a prokaryotic recombinase polypeptide, resulting in recombination between the recombination attachment sites, wherein the recombinase polypeptide can mediate recombination between the first and second recombination attachment sites, the first recombination attachment site is a phage genomic recombination attachment site (attP) or a bacterial genomic recombination attachment site (attB), the second recombination site is attB or attP, and the recombinase is selected from the group consisting of a Listeria monocytogenes phage recombinase, a Streptococcus pyogenes phage recombinase, a Bacillus subtilis phage recombinase, a Mycobacterium tuberculosis phage recombinase and a Mycobacterium smegmatis phage recombinase, provided that when the first recombination attachment site is attB, the second recombination attachment site is attP and when the first recombination attachment site is attP, the second recombination attachment site is attB. The invention also describes compositions, vectors, and methods of use thereof, for the generation of transgenic cells, tissues, plants, and animals. The compositions, vectors and methods of the present invention are also useful in gene therapy applications.
Owner:PADIDAM MALLA

Polynucleotides encoding brex system polypeptides and methods of using same

Isolated polynucleotides encoding a BREX system are provided. Accordingly there is provided an isolated polynucleotide encoding a BREX system comprising a nucleic acid sequence encoding the BREX system comprising brxC / pglY, pglZ and at least one of pglX, pglXI, brxP, brxHI, brxHII, brxL, brxD, brxA, brxB, brxF, and brxE, with the proviso that said BREX system does not comprise pglW, and wherein said BREX system confers phage resistance to a bacteria recombinantly expressing same; Also provided is an isolated polynucleotide encoding a BREX system comprising a nucleic acid sequence encoding the BREX system comprising brxC / pglY, pglZ, pglX, pglW and at least one of brxD and brxHI, and wherein said BREX system confers phage resistance to a bacteria recombinantly expressing same. Also provided are compositions and methods for conferring phage resistance to bacteria or for conferring bacterial susceptibility to phages.
Owner:YEDA RES & DEV CO LTD
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