Related topics: genes , proceedings of the national academy of sciences , stem cells , cells , cancer
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
'Self-seeding' of cancer cells may play a critical role in tumor progression
12 hours ago |
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Cancer progression is commonly thought of as a process involving the growth of a primary tumor followed by metastasis, in which cancer cells leave the primary tumor and spread to distant organs. A new study by researchers ...
Seeing how evolutionary mechanisms yield biological diversity
Dec 22, 2009 |
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An international team of scientists has discovered how changes in both gene expression and gene sequence led to the diversity of visual systems in African cichlid fish.
Adding a genetic supertool: Genome Analyzer fuels research dreams and tomorrow's cures
Dec 22, 2009 |
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To identify the hemophilia mutation that affected Queen Victoria and her European relatives, scientific detectives used a cutting-edge "deep sequencing tool." Able to trace rare genetic disease mutations, the tool can turn ...
Gene therapy makes mice breath easier
Dec 21, 2009 |
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Researchers from Boston University School of Medicine (BUSM) have discovered a new gene therapy that may prevent the progression of emphysema. The study, which appears on-line in the Journal of Clinical Investigation, descri ...
Protein that represses genes may play role in cell growth
Dec 21, 2009 |
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(PhysOrg.com) -- A Cornell study shows the protein not only activates some genes involved in the regulation of cell growth and signaling, but also may play a role in preventing cancers by inhibiting cell proliferation.
Researchers find reproductive germ cells survive and thrive in transplants, even among species
Dec 15, 2009 |
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Reproductive researchers from the University of Pennsylvania and The Children's Hospital of Philadelphia have succeeded in isolating and transplanting pure populations of the immature cells that enable male ...
Researchers show 'trigger' to stem cell differentiation
Dec 10, 2009 |
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A gene which is essential for stem cells' capabilities to become any cell type has been identified by researchers at the Hebrew University of Jerusalem and the University of California, San Francisco.
Study identifies genetic predeterminants for diabetes in African-Americans
Dec 09, 2009 |
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For years, scientists have tried to determine the basis for discrepancies between race and the predisposition for development of diseases such as type II diabetes and cardiovascular disease. Could factors ...
Transcription factors guide differences in human and chimp brain function
Dec 07, 2009 |
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Humans share at least 97 percent of their genes with chimpanzees, but, as a new study of transcription factors makes clear, what you have in your genome may be less important than how you use it.
Study shows nearly 1/3 of human genome is involved in gingivitis
Dec 07, 2009 |
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Gingivitis, which may affect more than one-half of the U.S. adult population, is a condition commonly attributed to lapses in simple oral hygiene habits. However, a new study shows that development and reversal of gingivitis ...
Why Some Monkeys Don't Get AIDS
Medicine & Health / HIV & AIDS
Dec 03, 2009 |
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(PhysOrg.com) -- Two studies published this month in the Journal of Clinical Investigation provide a significant advance in understanding how some species of monkeys such as sooty mangabeys and African green ...
Scientists discover genetic pattern that indicates early-stage lung cancer
Dec 01, 2009 |
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Wistar Institute researchers and collaborators from the University of Pennsylvania and New York University have identified immune system markers in the blood which indicate early-stage lung tumors in people at high risk for ...
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 ...
Systems biology approach provides insulin resistance insights
Nov 23, 2009 |
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Researchers from the University of California, San Diego recently offered the sharpest-yet picture of how core biochemical pathways in skeletal muscle cells and fat cells are altered in people who suffer from ...
The protein Srebp2 drives cholesterol formation in prion-infected neuronal cells
Nov 18, 2009 |
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Prions are causing fatal and infectious diseases of the nervous system, such as the mad cow disease (BSE), scrapie in sheep or Creutzfeldt-Jakob disease in humans. Scientists of Helmholtz Zentrum München and Technische Universität ...
