News tagged with nucleic acids
Simpler times: Did an earlier genetic molecule predate DNA and RNA?
(PhysOrg.com) -- In the chemistry of the living world, a pair of nucleic acids—DNA and RNA—reign supreme. As carrier molecules of the genetic code, they provide all organisms with a mechanism for ...
Jan 09, 2012 |
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New research links common RNA modification to obesity
An international research team has discovered that a pervasive human RNA modification provides the physiological underpinning of the genetic regulatory process that contributes to obesity and type II diabetes.
Oct 17, 2011 |
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New life form found on Earth: Deadly arsenic breathes life into organisms (Update, Video)
(PhysOrg.com) -- Evidence that the toxic element arsenic can replace the essential nutrient phosphorus in biomolecules of a naturally occurring bacterium expands the scope of the search for life beyond Earth, ...
Space & Earth / Space Exploration
Dec 02, 2010 |
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Scientists to test if life on Mars could be related to life on Earth
Over the course of the Earth's history, about a billion tons of rocks have been exchanged between the Earth and Mars. Scientists think it's possible that one or more of those rocks might have contained tiny ...
Space & Earth / Space Exploration
Nov 04, 2010 |
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WSU astrobiologist proposes fleet of probes to seek life on Mars
A Washington State University astrobiologist is leading a group of 20 scientists in calling for a mission to Mars with "a strong and comprehensive life detection component." At the heart of their proposal ...
Space & Earth / Space Exploration
Apr 23, 2012 |
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Scientists learn how to 'out run damage' with imaging technique
Over the decades X-ray crystallography has been fundamental in the development of many scientific fields. The method has revealed the structure and function of many biological molecules, including vitamins, drugs, proteins ...
Feb 21, 2012 |
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Scientists identify novel approach to view inner workings of viruses
Since the discovery of the microscope, scientists have tried to visualize smaller and smaller structures to provide insights into the inner workings of human cells, bacteria and viruses. Now, researchers at the National Institute ...
Jan 12, 2012 |
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Researchers identify lipid profile characteristic of newly diagnosed type 1 diabetes
(PhysOrg.com) -- A journal article showcasing results of lipidomics analyses for identifying novel biomarkers of diabetes conducted at Pacific Northwest National Laboratory was selected as "Editor's Choice" ...
Dec 30, 2011 |
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New curation tool a boon for genetic biologists
With the BeeSpace Navigator, University of Illinois researchers have created both a curation tool for genetic biologists and a new approach to searching for information.
Jun 21, 2011 |
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Accelerated lab evolution of biomolecules could yield new generation of medicines
Scientists at Harvard University have harnessed the prowess of fast-replicating bacterial viruses, also known as phages, to accelerate the evolution of biomolecules in the laboratory. The work, reported this week in the journal ...
Apr 10, 2011 |
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Revisited human-worm relationships shed light on brain evolution
"Man is but a worm" was the title of a famous caricature of Darwin's ideas in Victorian England. Now, 120 years later, a molecular analysis of mysterious marine creatures unexpectedly reveals our cousins as worms, indeed.
Medicine & Health / Neuroscience
Feb 09, 2011 |
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Nanotechnology: A dead end for plant cells?
Using particles that are 1/100,000 the width of a human hair to deliver drugs to cells or assist plants in fighting off pests may sound like something out of a science fiction movie, but these scenarios may be a common occurrence ...
Nanotechnology / Bio & Medicine
Nov 16, 2010 |
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Is the shape of a genome as important as its content?
If there is one thing that recent advances in genomics have revealed, it is that our genes are interrelated, "chattering" to each other across separate chromosomes and vast stretches of DNA. According to researchers ...
Oct 29, 2010 |
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Understanding how cells respond to nanoparticles
Gold nanoparticles are showing real promise as vehicles for efficiently delivering therapeutic nucleic acids, such as disease-fighting genes and small interfering RNA (siRNA) molecules, to tumors. Now, a team of investigators ...
Nanotechnology / Bio & Medicine
Oct 28, 2010 |
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Powerful supercomputer peers into the origin of life
(PhysOrg.com) -- Supercomputer simulations at the Department of Energy's Oak Ridge National Laboratory are helping scientists unravel how nucleic acids could have contributed to the origins of life.
Oct 04, 2010 |
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Nucleic acid
A nucleic acid is a macromolecule composed of chains of monomeric nucleotides. In biochemistry these molecules carry genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are universal in living things, as they are found in all cells and viruses. Nucleic acids were first discovered by Friedrich Miescher in 1871.
Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally-occurring DNA or RNA by changes to the backbone of the molecule.
For more information about Nucleic acid, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
