Cytotoxic T lymphocytes (CTLs) eliminate virus-infected tumor cells or alloantigen through a lyric mechanism, which involves the secretion of a cytoplasmic granules containing cytotoxic proteins, perforin and granzymes, of which the two most important are...
A team of researchers from the Autonomous University of Barcelona published a study showing that transposons can silence genes adjacent to or significantly reduce its expression by induction of synthesis of an antisense RNA. This new mechanism is now...
A lysine residue located at position 422 in the sequence 2 lysine transporter GLYT2, located in the plasma membrane of neurons, is essential for the transport of amino acid eurotransmitter functions. This transporter, as the GLYT1 in glial cells, controls...
Viroids are the bottom rung of the biological scale, being exclusively composed of a small circular RNA of 250-400 nucleotides lacking any coding capacity, a key aspect that differentiates them from the viruses that encode proteins themselves. Virus and...
The fate of a cell is determined by signals from their environment and their ability to respond to them. Some signaling pathways are involved in vital decisions during the development of organisms, this being an example of epithelial-mesenchymal...
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