DNA News

Certain Peptides Exposed to UV Radiation Transition to More Reactive Triplet Quantum States

October 21, 2014

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Peptides Exposed to UV Radiation Transition to More Reactive Triplet Quantum States

New research shows that certain peptides degrade under UV light by first passing through a triplet quantum state, a reactive arrangement that can cause greater damage than fragmentation alone. The most obvious effects of too much sun exposure are cosmetic, like wrinkled and rough skin. Some damage, however, goes deeper—ultraviolet light can damage DNA and […]

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Yale Biologists Describe DNA’s Security System

October 13, 2014

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Surveillance of Nuclear Pore Complex Assembly

In a newly published study, Yale biologists and colleagues describe a key quality control mechanism that protects new cells from inheriting defective nuclear pore complexes. As befitting life’s blueprint, DNA is surrounded by an elaborate security system that assures crucial information is imparted without error. The security is provided by a double membrane perforated by […]

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Engineers Develop New Method to Detect Epigenetic Modifications

August 15, 2014

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Identifying Epigenetic Markers Reveals Tumor Weaknesses

Chemical engineers from MIT have developed a new method to detect epigenetic modifications, which could offer a new way to choose the best treatment for individual patients. Scientists have known for decades that cancer can be caused by genetic mutations, but more recently they have discovered that chemical modifications of a gene can also contribute […]

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Lambda Virus Architecture Finally Rendered

August 13, 2014

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Researchers Produce a Depiction of the DNA Protein Complexes the Lambda Virus

After more than 50 years of research, biologists now have a picture of the molecular machines that allow the lambda virus to insert or remove DNA from the cells that it infects. Providence, Rhode Island (Brown University) — For half a century biologists have studied the way that the lambda virus parks DNA in the […]

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Scientists Engineer First Living Organism with an Expanded Genetic Alphabet

May 8, 2014

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Scientists Engineer First Living Organism that Transmits Added Letters in DNA Alphabet

A newly published study details how researchers at The Scripps Research Institute were able to create the first living organism with an expanded genetic alphabet. Scientists at The Scripps Research Institute (TSRI) have engineered a bacterium whose genetic material includes an added pair of DNA “letters,” or bases, not found in nature. The cells of […]

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Study Shows Nanoparticles in Consumer Products Can Damage DNA

April 9, 2014

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Nanoparticles in Consumer Products Can Damage DNA

Using high-speed screening technology to analyze DNA, a newly published study found that nanoparticles commonly added to consumer products can significantly damage DNA. Thousands of consumer products — including cosmetics, sunscreens, and clothing — contain nanoparticles added by manufacturers to improve texture, kill microbes, or enhance shelf life, among other purposes. However, several studies have […]

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MIT Researchers Reverse a Rare Liver Disorder in Mice

April 3, 2014

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MIT Researchers Reverse a Liver Disorder in Mice

In a newly published study, MIT researchers show that a new gene-editing technique, known as CRISPR, can reverse a rare liver disorder caused by a single genetic mutation. Using a new gene-editing system based on bacterial proteins, MIT researchers have cured mice of a rare liver disorder caused by a single genetic mutation. The findings, […]

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Regular Exercise Induces Changes in DNA

August 1, 2013

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Exercise Changes Expression of Our Innate DNA

A study from scientists at Lund University found that exercise induces genome-wide changes in DNA methylation in human adipose tissue, potentially affecting adipocyte metabolism. Exercise, even in small doses, changes the expression of our innate DNA. New research from Lund University in Sweden has described for the first time what happens on an epigenetic level […]

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The Search for “Microbial Dark Matter”

July 19, 2013

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Illuminating Biologys Dark Matter

In a newly published study, an international team of researchers detail the search for “microbial dark matter.” Is space really the final frontier, or are the greatest mysteries closer to home? In cosmology, dark matter is said to account for the majority of mass in the universe, however its presence is inferred by indirect effects […]

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DNA Study Reveals Clues about Primate Evolution

July 17, 2013

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New DNA Study Reveals Clues about Factors That Shaped Primate Evolution

In a new DNA study, an international team of scientists reveal clues to human and ape evolution, finding that the evolutionary history of ancestral great ape populations was far more complex than that of humans. A massive effort to catalog the genetic variation in humans, chimpanzees, gorillas and orangutans has helped researchers piece together a […]

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Study Suggests Life on Earth is the Result of Icy Comets

June 6, 2013

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New Research Suggests Life on Earth Came from Comets

A newly published study suggests that life on earth may have started as a result of icy comets that crashed into Earth billions of years ago. Early Earth was not very hospitable when it came to jump starting life. In fact, new research shows that life on Earth may have come from out of this […]

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Preserved Mammoth with Blood Discovered in Siberia

May 29, 2013

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Preserved Mammoth Found with Flowing Blood

A team of Russian scientists have discovered the remains of a female mammoth with blood and muscle tissue. Russian scientists have claimed to have discovered a fully-grown female mammoth carcass with blood and well-preserved muscle tissue trapped in ice in Siberia. The researchers found the mammoth blood during the excavation on the Lyakhovsky Islands in […]

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