Medical research

The key to proper muscle growth

When a muscle grows, because its owner is still growing too or has started exercising regularly, some of the stem cells in this muscle develop into new muscle cells. The same thing happens when an injured muscle starts to ...

Medical research

Viruses can 'hijack' cellular process to block immune response

Research led by McGill University and Queen's University Belfast has found that viruses can 'hijack' an existing molecular process in the cell in order to block the body's antiviral immune response to a viral infection.

Oncology & Cancer

Gene network for leukemia factor

Transcription factors—proteins that regulate gene expression—play critical roles in cell fate decisions and are frequent targets of mutation in a variety of human cancers. Understanding how transcription factors contribute ...

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Gene expression

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins, but in non-protein coding genes such as rRNA genes or tRNA genes, the product is a functional RNA.

Several steps in the gene expression process may be modulated, including the transcription, RNA splicing, translation, and post-translational modification of a protein. Gene regulation gives the cell control over structure and function, and is the basis for cellular differentiation, morphogenesis and the versatility and adaptability of any organism. Gene regulation may also serve as a substrate for evolutionary change, since control of the timing, location, and amount of gene expression can have a profound effect on the functions (actions) of the gene in the organism.

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