News tagged with nucleotide

Researchers extend human epigenomic map

Ten years ago, scientists announced the end of the Human Genome Project, the international attempt to learn which combination of four nucleotides—adenine, thymine, cytosine, and guanine—is unique to homo sapien DNA. This ...

Aug 08, 2013
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1,092 genomes and counting

Focusing on fine features in order to see "the big picture" seems almost counterintuitive, but that is exactly what is happening in the field of genomics. Researchers are sequencing human genomes, cataloging ...

Nov 16, 2012
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Unraveling genomic changes in the brain

Scientists have known for some time that individual organisms are far more than the sum of their gene sequences. So-called epigenetic variations encompass a diverse array of chemical modifications to DNA that ...

Aug 08, 2011
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New ADHD findings

A combination of rare and common genetic variations could play a part in biological pathways linked to Attention Deficit Hyperactivity Disorder (ADHD).

Nov 14, 2011
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Discovery could reduce chemotherapy's side effects

A team of researchers at Duke University has determined the structure of a key molecule that can carry chemotherapy and anti-viral drugs into cells, which could help to create more effective drugs with fewer effects to healthy ...

Mar 11, 2012
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Researchers tease apart workings of a common gene

Researchers at Weill Cornell Medical College have discovered why a tiny alteration in a brain gene, found in 20 percent of the population, contributes to the risk for anxiety, depression and memory loss.

Sep 19, 2013
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Nucleotide

Nucleotides are molecules that, when joined together, make up the structural units of RNA and DNA. Additionally, nucleotides play central roles in metabolism. In that capacity, they serve as sources of chemical energy (adenosine triphosphate and guanosine triphosphate), participate in cellular signaling (cyclic guanosine monophosphate and cyclic adenosine monophosphate), and are incorporated into important cofactors of enzymatic reactions (coenzyme A, flavin adenine dinucleotide, flavin mononucleotide, and nicotinamide adenine dinucleotide phosphate).

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