News tagged with rna
(Medical Xpress)—Specific DNA once dismissed as junk plays an important role in brain development and might be involved in several devastating neurological diseases, UC San Francisco scientists have found.
Genetics Apr 15, 2013 | 4.9 / 5 (14) | 2 |
A new class of influenza drug has been shown effective against drug-resistant strains of the flu virus, according to a study led by University of British Columbia researchers.
Medical research Feb 21, 2013 | 4.6 / 5 (11) | 0 |
For the past decade, researchers have tried to reprogram the identity of all kinds of cell types. Heart cells are one of the most sought-after cells in regenerative medicine because researchers anticipate ...
Medical research Jul 08, 2011 | 4.5 / 5 (10) | 7 |
Excess nutrients, such as fat and sugar, don't just pack on the pounds but can push some cells in the body over the brink. Unable to tolerate this "toxic" environment, these cells commit suicide.
Medical research Jul 05, 2011 | 4.6 / 5 (9) | 0 |
Most people understand genes to be specific segments of DNA that determine traits or diseases that are inherited. Textbooks suggest that genes are copied ("transcribed") into RNA molecules, which are then used as templates ...
Genetics Sep 05, 2012 | 5 / 5 (8) | 3 |
Despite vast differences in the genetic code across individuals and ethnicities, the human brain shows a "consistent molecular architecture," say researchers supported by the National Institutes of Health. ...
Genetics Oct 26, 2011 | 5 / 5 (7) | 9 |
By sequencing cancer-cell genomes, scientists have discovered vast numbers of genes that are mutated, deleted or copied in cancer cells. This treasure trove is a boon for researchers seeking new drug targets, but it is nearly ...
Cancer Aug 15, 2012 | 5 / 5 (7) | 2 |
The Journal of Neuroscience has published a study led by researchers at the Max Planck Florida Institute for Neuroscience, the first and only U.S. extension of the prestigious Max Planck Society, that may hold a stunning breakt ...
Alzheimer's disease & dementia Mar 19, 2013 | 4.9 / 5 (7) | 2
A drug candidate that has shown promise for neutralizing dangerous bacteria also prevents the parasite that causes malaria from growing, new research by a Yale University team headed by Nobel laureate Sidney Altman shows.
Medical research Apr 02, 2012 | 5 / 5 (6) | 1 |
(Medical Xpress)—Cardiac stress, for example a heart attack or high blood pressure, frequently leads to pathological heart growth and subsequently to heart failure. Two tiny RNA molecules play a key role ...
Cardiology Sep 25, 2012 | 5 / 5 (6) | 0 |
Scientists at The Scripps Research Institute (TSRI) have made a major advance in understanding how flu viruses replicate within infected cells. The researchers used cutting-edge molecular biology and electron-microscopy ...
Medical research Nov 22, 2012 | 5 / 5 (6) | 0 |
The surface of your skin, called the epidermis, is a complex mixture of many different cell types—each with a very specific job. The production, or differentiation, of such a sophisticated tissue requires an immense amount ...
Medical research Dec 02, 2012 | 5 / 5 (6) | 0 |
University of Kentucky researchers, led by Dr. Jayakrishna Ambati, have made an exciting finding in the "dry" form of age-related macular degeneration known as geographic atrophy (GA). GA is an untreatable condition that ...
Medical research Aug 06, 2012 | 4.8 / 5 (6) | 0 |
A study led by researchers at the UC San Diego Stem Cell Research program and funded by the California Institute for Regenerative Medicine (CIRM) looks at an important RNA binding protein called LIN28, which ...
Genetics Sep 04, 2012 | 4.3 / 5 (6) | 0 |
In a new study published today in the journal Nature, scientists discovered an entirely new way to change the genetic code. The findings, though early, are significant because they may ultimately help researchers alter the co ...
Medical research Jun 15, 2011 | 5 / 5 (5) | 0 |
Ribonucleic acid (RNA) is a biologically important type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate. RNA is very similar to DNA, but differs in a few important structural details: in the cell, RNA is usually single-stranded, while DNA is usually double-stranded; RNA nucleotides contain ribose while DNA contains deoxyribose (a type of ribose that lacks one oxygen atom); and RNA has the base uracil rather than thymine that is present in DNA.
RNA is transcribed from DNA by enzymes called RNA polymerases and is generally further processed by other enzymes. RNA is central to the synthesis of proteins. Here, a type of RNA called messenger RNA carries information from DNA to structures called ribosomes. These ribosomes are made from proteins and ribosomal RNAs, which come together to form a molecular machine that can read messenger RNAs and translate the information they carry into proteins. There are many RNAs with other roles – in particular regulating which genes are expressed, but also as the genomes of most viruses.
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