All Articles Tagged As: gene expression

Scientists Identify Key Roadblock to Gene Expression (5/13/2008)

A team of scientists has provided, for the first time, a detailed map of how the building blocks of chromosomes, the cellular structures that contain genes, are organized in the fruit fly Drosophila melanogaster ...> Full Article

Single-celled bacterium works 24-7 (4/30/2008)

Researchers have gained the first detailed insight into the way circadian rhythms govern global gene expression in Cyanothece, a type of cyanobacterium (blue-green algae) known to cycle between photosynthesis during the day and nitrogen fixation at night. ...> Full Article

Epigenetic research uncovers new targets for modification enzymes (4/28/2008)

Enzymes regulating genetic expression can be just as important as the genome itself, increasing evidence shows ...> Full Article

Nurture Over Nature (4/28/2008)

Geneticists have shown that environmental factors such as lifestyle and geography play a large role in whether certain genes are turned on or off ...> Full Article

Scientists Clarify a Mechanism of Epigenetic Inheritance (4/23/2008)

"Silent" DNA stays that way as a result of RNA interference during chromosome replication ...> Full Article

Fertility Expert finds Genetic Markers of an Egg's Maturity (4/21/2008)

Fertility have long been interested in understanding why so few human eggs harvested during in vitro fertilization result in pregnancies. New research narrows the list of suspects. ...> Full Article

Researchers Discover Critical Detail of Cellular Defense Against Genetic Mistakes (4/19/2008)

Researchers are closing in on a completed diagram of how human cells protect themselves against constant genetic mistakes that contribute to most diseases ...> Full Article

Gene-environment interaction in yeast gene expression (4/16/2008)

Study increases the ability to study thousands of gene expression patterns simultaneously ...> Full Article

Gene oppositely controlled by dietary protein, sugar (4/14/2008)

Researchers have discovered a gene in flies whose activity rises and falls depending upon the amount of protein and sugar in the insects' diets ...> Full Article

Computation to unravel how genes are regulated and shed light on how cells become different (4/11/2008)

A closer alliance between computational and experimental researchers is needed to make progress towards one of biology's most challenging goals, understanding how epigenetic marks contribute to regulation of gene expression ...> Full Article

Brain DNA 'Remodeled' in Alcoholism (4/3/2008)

Reshaping of the DNA scaffolding that supports and controls the expression of genes in the brain may play a major role in the alcohol withdrawal symptoms, particularly anxiety, that make it so difficult for alcoholics to stop using alcohol. ...> Full Article

Genes Previously Thought Not To Function May Hold Key Information About Disease, Aging (3/27/2008)

Genes that scientist believe are turned off are actually functioning at a low level that has previously been undetected, a discovery that could help answer questions about chronic disease and aging ...> Full Article

Deadly genetic disease prevented before birth in zebrafish (3/23/2008)

Finding offers potential for helping humans ...> Full Article

Systems biology approach identifies nutrient regulation of biological clock in plants (3/16/2008)

Using a systems biological analysis of genome-scale data from the model plant Arabidopsis, an international team of researchers identified that the master gene controlling the biological clock is sensitive to nutrient status. The study will appear in the latest issue of the Proceedings of the National Academy of Sciences. This hypothesis derived from multi-network analysis of Arabidopsis genomic data, and validated experimentally, has shed light on how nutrients affect the molecular networks controlling plant growth and development in response to nutrient sensing. ...> Full Article

Royal jelly makes bee queens, boosts nurture case (3/16/2008)

New research may explain why eating royal jelly destines honeybee larvae to become queens instead of workers - and in the process adds new weight to the role of environmental factors in the nature/nurture divide. ...> Full Article

New revelations in epigenetic control shed light on breast cancer (3/11/2008)

Scientists discover that long-term regulation of the human genome is much more dynamic than assumed ...> Full Article

Device allows scientists to control gene activity across generations of cells (3/4/2008)

Just as cells inherit genes, they also inherit a set of instructions that tell genes when to become active, in which tissues and to what extent. Now, Rockefeller University researchers have built a device that, by allowing scientists to turn genes on and off in actively multiplying budding yeast cells, will help them figure out more precisely than before how genes and proteins interact with one another and how these interactions drive cellular functions. ...> Full Article

Toolkit energizes study of cell's powerhouse (2/27/2008)

Screening both genes and physiology yields rich compendium on mitochondrial biology ...> Full Article

Researchers discover a mechanism leading to cleft palate (2/15/2008)

Work in zebrafish points to tiny gene products that regulate specific cell traffic of a key protein ...> Full Article

Scientists find how a protein binds to genes and regulates them across the human genome (2/11/2008)

Out of chaos, control: Cornell molecular biologists have discovered how a protein called PARP-1 binds to genes and regulates their expression across the human genome. Knowing where PARP-1 is located and how it works may allow scientists to target this protein to battle common diseases, such as stroke and cancer. ...> Full Article

Environmental Epigenetics Has Potential for Preventing and Treating Disease (2/2/2008)

New research on environmental influences on health and disease has begun to shed light on why genetically identical individuals demonstrate different characteristics, such as susceptibility to disease. Scientists have found that environmental exposure to nutritional, chemical and physical factors can alter the epigenome. Literally meaning "above the genome," the epigenome refers to differences in gene expression that are inherited without changing the sequence of DNA. ...> Full Article

A group of researchers discover a new code in the genome (1/29/2008)

The finding have been possible thanks to the calculation capacity of the MareNostrum supercomputer ...> Full Article

Search For The 'On' Switches May Reveal Genetic Role In Development And Disease (1/26/2008)

A new resource that identifies regions of the human genome that regulate gene expression may help scientists learn about and develop treatments for a number of human diseases, according to researchers at Duke's Institute for Genome Sciences & Policy (IGSP). ...> Full Article

Molecular Evolution: Mice Given Bat-like Forelimbs Through Gene Switch (1/16/2008)

A research team led by Dr. Richard Behringer at MD Anderson Cancer Center reports that they have successfully switched the mouse Prx1 gene regulatory element with the Prx1 gene regulatory region from a bat -- and although these two species are separated by millions of years of evolution -- the resulting transgenic mice displayed abnormally long forelimbs. ...> Full Article