News tagged with gene replication
Study offers new information for flu fight
Influenza virus can rapidly evolve from one form to another, complicating the effectiveness of vaccines and anti-viral drugs used to treat it. By first understanding the complex host cell pathways that the flu uses for replication, ...
Jan 27, 2012 |
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New light shed on chromosome fragility
Why are certain chromosome regions prone to breakages? The answer is crucial, as this fragility is involved in the development of tumors. A team from the Institut de Génétique et de Biologie Moleculaire et Cellulaire ...
Dec 26, 2011 |
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Study reveals new role for RNA interference during chromosomal replication
At the same time that a cell's DNA gets duplicated, a third of it gets super-compacted into repetitive clumps called heterochromatin. This dense packing serves to repress or "silence" the DNA sequences within -- which could ...
Oct 16, 2011 |
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Collisions of protein machines cause DNA replication derailment
Scientists have published results that will forever change the way researchers view the interplay between gene expression, DNA replication and the prevention of DNA damage.
Feb 24, 2011 |
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Protein clamps tight to telomeres to help prevent aging... and support cancer
The number of times our cells can divide is dictated by telomeres, stretches of DNA at the tips of our chromosomes. Understanding how telomeres keep our chromosomes - and by extension, our genomes - intact is an area of intense ...
Sep 15, 2010 |
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Exposure to low doses of BPA alters gene expression in the fetal mouse ovary
A study posted today (Wednesday, August 25) at the online site of the journal Biology of Reproduction reports that exposure of pregnant female mice to the endocrine-disrupting chemical bisphenol A may produce adverse reprod ...
Medicine & Health / Medical research
Aug 25, 2010 |
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Protein helps fix damaged DNA in yeast
(PhysOrg.com) -- Like a scout that runs ahead to spot signs of damage or danger, a protein in yeast safeguards the yeast cells' genome during replication -- a process vulnerable to errors when DNA is copied ...
Jul 30, 2010 |
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Why cancer drugs lose their power: Platinum-based cancer drugs destroy tumor cells by binding to DNA strands
(PhysOrg.com) -- For 30 years, the chemotherapy drug cisplatin has been one of doctors' first lines of defense against tumors, especially those of the lung, ovary and testes. While cisplatin is often effective ...
Apr 14, 2010 |
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Helicobacter pylori and EBV in gastric carcinomas
Mechanisms of gastric carcinogenesis are still not yet understood. Studies have linked genetic and epigenetic factors or microbiological agents to gastric cancer, but they didn't look for these events together. Dr. Ferrasi ...
Feb 10, 2010 |
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Social scientists build case for 'survival of the kindest'
(PhysOrg.com) -- Researchers at the University of California, Berkeley, are challenging long-held beliefs that human beings are wired to be selfish. In a wide range of studies, social scientists are amassing ...
Other Sciences / Social Sciences
Dec 08, 2009 |
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Messenger RNA with FLASH
A study from the University of North Carolina at Chapel Hill has identified a key player in a molecular process essential for DNA replication within cells.
Oct 22, 2009 |
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'Jumping genes' create antibiotic resistance in bacteria
(PhysOrg.com) -- A small piece of foreign DNA recognizes when and where to slip into a bacterium's genetic code, allowing bacteria to genetically adapt to their environment -- and develop resistance to antibiotics, ...
Aug 20, 2009 |
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Researchers uncover potential mechanisms to protect against genetic alterations, diseases
Peering into the DNA of tiny yeast, researchers at the Moores Cancer Center at the University of California, San Diego and the San Diego Branch of the Ludwig Institute for Cancer Research have pinpointed a large number of ...
Aug 06, 2009 |
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A yeast cancer model for mapping cancer genes
Researchers have devised a scheme for identifying genes in yeast that could lead to the identification of new cancer genes in humans. The study is published online this week in the open-access journal PLoS Bi ...
Jul 28, 2009 |
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Of yeast and men: Unraveling the molecular mechanisms of Friedreich's ataxia
Researchers in human genetics have long known that expansions of GAA repeats - resulting in this nucleotide triplet repeating hundreds or thousands of times - cause the most common hereditary neurological disorder known as ...
Jul 09, 2009 |
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