Stimulator of interferon genes (STING), also known as transmembrane protein 173 (TMEM173) and MPYS/MITA/ERIS is a protein that in humans is encoded by the TMEM173 gene.
STING mediates the type I interferon production in response to intracellular DNA and a variety of intracellular pathogens, including viruses, intracellular bacteria and intracellular parasites. Upon infection, STING from infected cells can sense the presence of nucleic acids from intracellular pathogens, and then induce interferon β and more than 10 forms of interferon α production. Type I interferon produced by infected cells can find and bind to Interferon-alpha/beta receptor of nearby cells to protect cells from local infection.
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