Molecular model of interferon regulatory factor 3 (IRF3) bound to a DNA (deoxyribonucleic acid) molecule (pink and green). IRF3 is a member of the interferon regulatory transcription factor family. It binds to DNA to activate the transcription of interferons alpha and beta, as well as other interferon-induced genes. Interferons are proteins produced by white blood cells as part of the immune response to invading pathogens, especially viruses.
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