Related topics: proceedings of the national academy of sciences
Gene expression
hideGene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins, but in non-protein coding genes such as rRNA genes or tRNA genes, the product is a functional RNA.
Several steps in the gene expression process may be modulated, including the transcription, RNA splicing, translation, and post-translational modification of a protein. Gene regulation gives the cell control over structure and function, and is the basis for cellular differentiation, morphogenesis and the versatility and adaptability of any organism. Gene regulation may also serve as a substrate for evolutionary change, since control of the timing, location, and amount of gene expression can have a profound effect on the functions (actions) of the gene in the organism.
For more information about Gene expression, read the full article at
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News tagged with gene expression
Scientists Use Inkjet Printer to Manipulate Genes in New Ways
Oct 05, 2009 |
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(PhysOrg.com) -- With recent advances in biochemistry, researchers can control the circuitry in a developing cell, thereby influencing cells to develop into specific phenotypes. Taking a step forward in this ...
Why can't chimps speak? Study links evolution of single gene to human capacity for language
Nov 11, 2009 |
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(PhysOrg.com) -- If humans are genetically related to chimps, why did our brains develop the innate ability for language and speech while theirs did not?
Unraveling the mechanisms behind organ regeneration in zebrafish
Nov 02, 2009 |
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The search for the holy grail of regenerative medicine -- the ability to "grow back" a perfect body part when one is lost to injury or disease -- has been under way for years, yet the steps involved in this ...
What drives our genes? Researchers map the first complete human epigenome
Oct 14, 2009 |
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Although the human genome sequence faithfully lists (almost) every single DNA base of the roughly 3 billion bases that make up a human genome, it doesn't tell biologists much about how its function is regulated. Now, researchers ...
Researchers discover RNA repair system in bacteria
Oct 12, 2009 |
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In new papers appearing this month in Science and the Proceedings of the National Academy of Sciences, University of Illinois biochemistry professor Raven H. Huang and his colleagues describe the first RNA repair system to be ...
Honey-bee aggression study suggests nurture alters nature
Aug 17, 2009 |
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A new study reveals that changes in gene expression in the brain of the honey bee in response to an immediate threat have much in common with more long-term and even evolutionary differences in honey-bee aggression. ...
Gene transcribing machine takes halting, backsliding trip along the DNA
Jul 30, 2009 |
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(PhysOrg.com) -- The body's nanomachines that read our genes don't run as smoothly as previously thought, according to a new study by University of California, Berkeley, scientists.
Nanotech particles affect brain development in mice
Nanotechnology / Bio & Medicine
Jul 28, 2009 |
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Maternal exposure to nanoparticles of titanium dioxide (TiO2) affects the expression of genes related to the central nervous system in developing mice. Researchers writing in BioMed Central's open access journal Particle an ...
Microfabricated device measures cellular forces during tissue development (w/Video)
Jun 22, 2009 |
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A University of Pennsylvania-collaboration of bioengineers studying the physical forces generated by individual cells has created a tiny micron-sized device that allows researchers to measure and manipulate ...
MIT reels in RNA surprise with microbial ocean catch
May 13, 2009 |
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An ingenious new method of obtaining marine microbe samples while preserving the microbes' natural gene expression has yielded an unexpected boon: the presence of many varieties of small RNAs — snippets of RNA that act as ...
Scientists ID gene key to Alzheimer's-like reversal
May 06, 2009 |
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(PhysOrg.com) -- A team led by researchers at MIT's Picower Institute for Learning and Memory has now pinpointed the exact gene responsible for a 2007 breakthrough in which mice with symptoms of Alzheimer's disease regained ...
A Biological Basis for the 8-Hour Workday? Researchers uncover 8- and 12-hour Cycles of Gene Activity
Apr 22, 2009 |
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(PhysOrg.com) -- The circadian clock coordinates physiological and behavioral processes on a 24-hour rhythm, allowing animals to anticipate changes in their environment and prepare accordingly. Scientists ...
Scientists identify host factors critical to dengue virus infection
Apr 22, 2009 |
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By painstakingly silencing genes one at a time, scientists at Duke University Medical Center have identified dozens of proteins the dengue fever virus depends upon to grow and spread among mosquitoes and humans.
Researchers find new piece in Alzheimer's puzzle
Feb 25, 2009 |
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Yale researchers have filled in a missing gap on the molecular road map of Alzheimer's disease. In the Feb. 26 issue of the journal Nature, the Yale team reports that cellular prion proteins trigger the process by which ...
Acute stress leaves epigenetic marks on the hippocampus
Medicine & Health / Psychology & Psychiatry
Nov 24, 2009 |
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(PhysOrg.com) -- Scientists are learning that the dynamic regulation of genes -- as much as the genes themselves -- shapes the fate of organisms. Now the discovery of a new epigenetic mechanism regulating genes in the brain ...
