Oncology & Cancer

New principle for activation of cancer genes discovered

Researchers have long known that some genes can cause cancer when overactive, but exactly what happens inside the cell nucleus when the cancer grows has so far remained enigmatic. Now, researchers at Karolinska Institutet ...

Diseases, Conditions, Syndromes

Detailed map of lung immune response in TB

The picture above shows a tuberculosis (TB) infection in a mouse lung, in which immune cells form a granuloma around the bacteria. The different symbols represent working copies of active genes, called messenger RNA, which ...

Diseases, Conditions, Syndromes

Chikungunya antibody set to enter clinical trial

A monoclonal antibody against the chikungunya virus developed by researchers at Vanderbilt University Medical Center is the first monoclonal antibody encoded by messenger RNA to enter a clinical trial.

Neuroscience

A role for microRNAs in social behavior

The recent discovery of microRNAs as key regulators of biological processes has fueled an explosion of research activity into their function in health and disease. Researchers have now uncovered a microRNA cluster that regulates ...

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Messenger RNA

Messenger ribonucleic acid (mRNA) is a molecule of RNA encoding a chemical "blueprint" for a protein product. mRNA is transcribed from a DNA template, and carries coding information to the sites of protein synthesis: the ribosomes. Here, the nucleic acid polymer is translated into a polymer of amino acids: a protein. In mRNA as in DNA, genetic information is encoded in the sequence of nucleotides arranged into codons consisting of three bases each. Each codon encodes for a specific amino acid, except the stop codons that terminate protein synthesis. This process requires two other types of RNA: transfer RNA (tRNA) mediates recognition of the codon and provides the corresponding amino acid, while ribosomal RNA (rRNA) is the central component of the ribosome's protein manufacturing machinery.

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