A study from Massachusetts General Hospital (MGH) investigators has found a surprising role for what had been considered a nonfunctional "junk" RNA molecule: controlling the cellular response to stress. In their report in ...
Cell & Microbiology
Dec 15, 2016
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Working with a gene that plays a critical role in HIV infection, University of Maryland researchers have discovered that some human genes have an alternate set of operating instructions written into their protein-making machinery. ...
Cell & Microbiology
Jul 9, 2014
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(PhysOrg.com) -- In today's world of sophisticated organisms proteins are the stars. They are the indispensible catalytic workhorses, carrying out the processes essential to life. But long, long ago ribonucleic acid (RNA) ...
Biochemistry
Nov 14, 2010
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An analysis of enzymes that load amino acids onto transfer RNAs—an operation at the heart of protein translation—offers new insights into the evolutionary origins of the modern genetic code, researchers report. Their ...
Biotechnology
Aug 26, 2013
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(PhysOrg.com) -- To make proteins, cells assemble long chains of amino acids, based on genetic instructions from DNA. That construction takes place in a tiny cellular structure called a ribosome, to which amino acids are ...
Cell & Microbiology
Nov 11, 2011
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The so-called central dogma of molecular biology—that DNA makes RNA which makes protein—has long provided a simplified explanation for how genetic information is deciphered and translated in living organisms.
Cell & Microbiology
Sep 15, 2014
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With few exceptions, all known forms of life on our planet rely on the same genetic code to specify the amino acid composition of proteins. Although different hypotheses abound, just how individual amino acids were assigned ...
Cell & Microbiology
Apr 12, 2010
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When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them ...
Cell & Microbiology
Nov 25, 2009
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A portion of the "code" of life has been unraveled by a UC Santa Barbara graduate student from the town of Jojutla, Mexico.
Cell & Microbiology
Mar 23, 2011
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(PhysOrg.com) -- Selenium is a trace element crucial to life -- too little or too much of it is fatal. In the July 17 issue of the journal Science, researchers at Yale University and University of Illinois at Chicago detail ...
Cell & Microbiology
Jul 16, 2009
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