A decade ago, gene expression seemed so straightforward: genes were either switched on or off. Not both. Then in 2006, a blockbuster finding reported that developmentally regulated genes in mouse embryonic stem cells can ...
Cell & Microbiology
Aug 11, 2013
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Out of the estimated 23,000 or more genes in the human genome, about 100 of them will differ—they will be present or not—between any two individuals. Genes lost or gained over time result from evolution and adaptation, ...
Biotechnology
Aug 9, 2013
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(Phys.org) —By studying a gene in yeast, a team of scientists has found that modifications to histones—proteins associated with DNA—can control whether or not a gene is allowed to function and may be important in maintaining ...
Biotechnology
Aug 6, 2013
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A study of gene expression led by scientists at the EMBL-European Bioinformatics Institute (EMBL-EBI) and the University of Cambridge has revealed the first steps of evolution in gene regulation in mice. Published in the ...
Biotechnology
Aug 2, 2013
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As a result of the variable nature of gene expression, genetically identical cells inhabiting the same environment can vary significantly in their numbers of key enzymes, which in turn results in strikingly different cellular ...
Biochemistry
Jul 29, 2013
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Every cell in an organism's body has the same copy of DNA, yet different cells do different things; for example, some function as brain cells, while others form muscle tissue. How can the same DNA make different things happen? ...
Biotechnology
Jul 10, 2013
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In nearly every organism's genome, scattered between genes that encode proteins, long regulatory regions stretch across expanses of DNA. Understanding what role these so-called enhancer regions play in controlling the activation ...
Biotechnology
Jul 1, 2013
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A new study challenges the orthodoxy of microbiology that in response to environmental changes, bacterial genes will boost production of needed proteins and decrease production of those that aren't. Researchers with the U.S. ...
Cell & Microbiology
Jun 19, 2013
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Scientists at the University of York have uncovered new insights into the way seeds use gene networks to control when they germinate in response to environmental signals.
Biotechnology
Jun 10, 2013
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What makes one Argonaute a slicer and another one not? Human Argonaute proteins are key players in the gene regulation process known as RNA interference, RNAi. Professor Joshua-Tor's group of Cold Spring Harbor Laboratory ...
Cell & Microbiology
Jun 6, 2013
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