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Recombination in Medical News

BRIT1 allows DNA repair teams access to damaged sites

...the damage site. The team showed that normal BRIT1 aids repair of double-stranded DNA breaks by allowing access to two repair pathways: homologous recombination (HR) and non-homologous end-joining (NHEC). DNA repair efficiency dropped by between 40 and 60 percent in cells with BRIT1 knocked down that were t...

Research suggests new cellular targets for HIV drug development

...likely is because macrophages multiply as a result of an inflammatory response, the researchers said. "The study points to macrophages as a site of recombination in active disease," said neurobiologist Kenneth C. Williams, Ph.D., a Boston College associate professor and AIDS expert who was not involved in the s...

NYU School of Medicine pathology researchers solve another mystery in B lymphocyte development

... in the nucleus at stages that coincide with V(D)J recombination of the heavy and light chain (Igh and Igk) loci. ...ng and helps ensure that only one allele undergoes recombination at a time (a process known as allelic exclusion). In "RAG-1 and ATM Coordinate Monoallelic recombination and Nuclear Positioning of Immunoglobulin Loci," r...

Scientists Find New Way to Create Stem Cells

...ipps news release. Ding and his colleagues reprogrammed adult cells by engineering and using recombinant proteins, which are proteins made from the recombination of fragments of DNA from different organisms. They experimented with these proteins until they found the exact mix that enabled them to gradually repr...

Researchers crack the code of the common cold

...eason, when many different strains of rhinovirus may be causing infections, recombination could rapidly produce new strains. Multiple mutations (as many as 800) w...from a large number of patients, it is likely that hotspots for mutation or recombination will become apparent, and other regions resistant to mutational change may ...

Genetic Code of Common Cold Cracked

... genetic material from two separate strains infecting the same person. Such recombination had not been thought possible for rhinoviruses. That recombination is one reason why a vaccine against the common cold appears to be impossibl...
Recombination in Medical Technology

deCODE and SGENE Consortium Discover Deletions in the Human Genome Linked to Risk of Schizophrenia

...e human genome that confer risk of schizophrenia. Such deletions are gaps in the normal sequence of the genome that can arise spontaneously during the recombination or reshuffling of the genome that takes place in the creation of sperm and eggs. The deletions reported in today's study are located on chromosomes 1q...

Sunesis Pharmaceuticals to Present Non-Clinical Data at the Annual Meeting of the American Association for Cancer Research

...F, San Diego Convention Center -- Sensitivity to SNS-595 is related to activation of double strand DNA break repair pathways including homologous recombination Session: Stress Responses Abstract #1859 8:00 a.m. - 12:00 p.m. Exhibit Hall B-F, San Diego Convention Center -- Ex vivo activity of SNS-...

AVI BioPharma Reports Positive Pre-Clinical Influenza Data

...by the H5N1 subtype. It is thought that co-infection of humans or certain animals (such as pigs) with both H1N1 and H5N1 can lead to a reassortment or recombination of viral particles, resulting in the emergence of a virus with dangerous public health properties, namely one to which the human population has no nat...
Recombination in Medical Dictionary

Surgical excision

... ankle, leg, knee, and hip disorders includes doctor-written articles, ask the doctor section, and a ... excision ( ek′sizhən ) ( genetics ) recombination involving removal of ... What is the medical term used for surgical excision of droopy eyelid? Read answer... Award-winning, breast cancer ...

Immunoglobulin

... 5 Immunoglobulin diversity. 5.1 Domain variability. 5.2 V(D)J recombination ... For more details on this topic, see Immunoglobulin heavy chain. ... Immunoglobulin A (IgA) is an antibody playing a critical role in m...
Recombination in Biological News

Viral recombination another way HIV fools the immune system

When individuals infected with HIV become infected with a second strain of the virus, the two viral strains can exchange genetic information, creating a third, recombinant strain of the virus. It is known that the presence of multiple viral strains, called superinfection, frequently leads to a lo...

Human RecQ helicases, homologous recombination and genomic instability

Two independent papers in the December 1st issue of G&D detail how human RecQ helicases regulate homologous recombination and protect genome stability. The human RecQ family of helicases consists of 5 members: WRN, BLM, RECQL4, RECQL1 and RECQL5. These enzymes help to unwind DNA so to facilita...

DNA Recombination and Repair—A New Twist to RecA Function

Molecular motors harness the energy of ATP (or GTP, a related energy currency) and transform it into mechanical force. Well-known examples of motors include myosin and dynein, proteins that use ATP to ferry intracellular cargo along fibers made of actin or tubulin proteins. The ATP-dependent assemb...

Mary had a lot of lambs: Researchers identify way to accelerate sheep breeding

...ctually impacts how the sheep's body reacts to melatonin. And there may be a risk of losing the association over generations, the researchers said, as recombination could occur between the marker and the functional gene. Thus, the researchers stress that it will be very important to validate the gene's ability ...

Iowa State University researchers develop process for 'surgical' genetic changes

... was in the right place or if it would work until many resulting plants were tested. The new technique harnesses a natural process called homologous recombination to precisely introduce DNA at a predetermined location in the plant genome through targeted DNA breaks generated by zinc finger nucleases. This occurs...

Baylor researchers unravel mystery of DNA conformation

...on, and Pauling-like DNA caused by under- and overwinding allows DNA to interact with proteins during processes such as replication, transcription and recombination and allows the code to be read. And back to the idea of the "perfect spring" behavior of the DNA helix - "This notion is entirely wrong," said Zechie...
Recombination in Biological Technology

Cellectis and Regeneron Sign an Agreement Over the use of Homologous Recombination Technology

BIOCITECH, France, July 3 /PRNewswire-FirstCall/ -- Cellectis SA today announced the signature of an agreement with Regeneron Pharmaceuticals, Inc. over the use of Cellectis' patents covering certain uses of homologous recombination for the generation of innovative human therapies, including t...

R-Tech Ueno Notifies R&D Items

...elated macular degeneration. 3. Development code RU-10 (eye diseases) Dry eye is targeted for development of the drug that contains gene recombination human serum albumin as an effective ingredient. Though the clinical study is currently interrupted, we intend to look for overseas affiliation soon be...

Frost & Sullivan Awards Precision Biosciences for Technology Innovation and Molecular Design Process in the Genomics Market

...s of a genome can be combined with the introduction of synthesized sequence elements or DNA segments of interest," notes Dr. Basu. "The process of DNA recombination can then result in the production of transformed DNA elements, thereby modifying targeted genomes." Such modifications have wide-ranging applicat...

Chromosome breakpoints contribute to genetic variation

...nsertions and inversions can cause subtle or dramatic changes in how the genes function. Scientists once hypothesized that chromosomal breakage and recombination occurred randomly along the chromosomes during evolution. But in 2003, a team from the University of California at San Diego and the Lewin laboratory ...

J. Craig Venter Institute Researchers Publish Significant Advance in Genome Assembly Technology

...sh creating the synthetic bacterial genome using a method called homologous recombination (a process that cells naturally use to repair chromosome damage). ...serted into yeast cells in one step and through the mechanism of homologous recombination were assembled into the synthetic M. genitalium genome. Several experimen...

Nanowires may boost solar cell efficiency, UC San Diego engineers say

...ct path from the p-n junction to the electrode a situation which increases recombination between holes and electrons and reduces efficiency in converting sunlight t...rically connected to an electrode. Thus, they do not minimize electron-hole recombination by providing electrons with a direct path from the p-n junction to the elec...
Recombination in Biological Products

* Quick & Easy E. coli Gene Deletion Kit from Gene Bridges GmbH

Description:...out or alter genes on the E.coli chromosome in less than one week. Red/ET recombination allows the exchange of genetic information in a base pair precise, specific... kit which can be used to replace a gene on the E.coli chromosome. Red/ET recombination can replace fragments as large as 30kb from the E.coli chromosome. The u...
Company:Gene Bridges GmbH

BacMagic™ DNA Kit from Novagen

Description:...ce in a compatible transfer plasmid, such as the pBAC™or pTriEx™ vectors, is cotransfected with BacMagic DNA into insect cells. Homologous recombination within the cells restores the function of the virus ORF1629 while the target coding sequence replaces the BAC sequence. Only the recombinant baculovir...
Company:Novagen

* Quick & Easy Conditional Knock Out Kit - loxP from Gene Bridges GmbH

Description:... E.coli with a eukaryotic promoter (PGK) for expression of neomycin resistance in mammalian cells. The included 706-Cre expression plasmid allows Cre recombination in E.coli . This kit can also be used to work on bacterial artificial chromosomes (BACs). The generation of targeting constructs is achieved utilizin...
Company:Gene Bridges GmbH

loxP flanked, Pro and Euk. Neomycin Selection Cassette (loxP-PGK-gb2-neo-loxP) from Gene Bridges GmbH

Description:...d by adding the corresponding sequence in the PCR primer. The template can easily be used to generate targeting constructs mediated by a single Red/ET recombination step. The loxP-PGK-gb2-neo-loxP template is not linear but plasmid based (3446bp in size). Due to its R6K origin it can not replicate in most E.coli ...
Company:Gene Bridges GmbH

FRT flanked, Pro and Euk. Neomycin Selection Cassette (FRT-PGK-gb2-neo-FRT) from Gene Bridges GmbH

Description:...d by adding the corresponding sequence in the PCR primer. The template can easily be used to generate targeting constructs mediated by a single Red/ET recombination step. The FRT-PGK-gb2-neo-FRT template is not linear but plasmid based (3446bp in size). Due to its R6K origin it can not replicate in most E. coli ...
Company:Gene Bridges GmbH

Mut S from USB Corp.

Description:...tegral role in proofreading the nascent strands in DNA replication, in transcription-coupled nucleotide excision repair and in preventing chromosomal recombination between different species of bacteria. Mut S binds to DNA specifically at base pair mismatches and small (<4 nt) insertions and deletions....
Company:USB Corp.
Recombination in Biological Definition

Recombination

Recombination usually denotes a genetic event that occurs during the formation of sperm and egg cells (especially in areas of study of biology topics ). It is also referred to as crossing over (or change of phase ). Other possible implication of the term are as follows: In bio...

Genetic recombination

Genetic recombination is the process by which the combination of genes in an organism's offspring becomes different from the combination of genes in that organism. This definition is commonly used in classical genetics , evolutionary biology , and population genetics . However, in mole...

Antibody

...d.). Brooks/Cole. ISBN 0534421741 External links Lymphomation: Immunoglobulins How Lymphocytes Produce Antibody PLOS primer: V(D)J recombination and the Evolution of the Adaptive Immune System ...

Bacterial conjugation

... one must not. The F-plasmid (also called F-factor) is an episome (a plasmid that can integrate itself into the bacterial chromosome by genetic recombination ) of about 100 kb (kilo base pairs ) length. It carries its own origin of replication , called oriV . There can only be one copy of the F-plasmid i...

Cell growth

...advantage . Notice that when meiosis starts, the two copies of chromosome number 2 are adjacent to each other. During this time, there can be genetic recombination events. Parts of the chromosome 2 DNA that you got from your mother (red) will swap over to the chromosome 2 DNA molecule that you got from your fath...

Chromosomal crossover

.... The physical basis of crossing over was first demonstrated by Harriet Creighton and Barbara McClintock in 1931 . See also Genetic recombination Recombinant frequency ...
Recombination in Biological Dictionary

Recombination

Genetic recombination is the process by which a strand of genetic material is broken and then joined to a different DNA molecule. In eukaryotes recombination occurs in mitosis as a common mechanism of DNA repair and in... Genetic recombination , the process by which genetic mater...

Site-specific recombination

Site - specific recombination , also known as conservative site - specific recombination , is a type of genetic recombination in which DNA strand exchange takes place between segments possessing only a limited degree of sequence homology. Site - specific recombinases perform... Cre-Lox...

Homologous recombination

Homologous recombination , also known as general recombination , is a type of genetic recombination in which genetic material is exchanged between two similar or identical strands of DNA. The process involves several steps of... Homologous recombination , also known as general recombinat...

Genetic recombination

Genetic recombination is the process by which a strand of genetic material is broken and then joined to a different DNA molecule. In eukaryotes recombination occurs in mitosis as a common mechanism of DNA repair and in... Genetic recombination . From CreationWiki, the encycloped...

Unlinked

...estors as an unlinked , separate, small database within the ... Meiotic recombination Between Unlinked Genes Animation ... Loading... More Biology Animations. Meiotic recombination Between Unlinked Genes. 2D Flash Animation ... When specimens are coll...

Transposase

...d in the following places at Britannica. Assorted References site-specific recombination ( in nucleic acid (chemical compound): Site-specific recombination ) ...to another, as first discovered in corn (maize) during the 1940s and ...

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