TBK1 (TANK-binding kinase 1) is an enzyme with kinase activity. Specifically, it is a serine / threonine protein kinase. This kinase is mainly known for its role in innate immunity antiviral response. However, TBK1 also regulates cell proliferation, apoptosis, autophagy, and anti-tumor immunity. Insufficient regulation of TBK1 activity leads to autoimmune, neurodegenerative diseases or tumorigenesis. As a non-canonical IKK, TBK1 is also involved in the non-canonical NFkB pathway. It phosphorylates p100/NF-κB2, which is subsequently processed in the proteasome and released as a p52 subunit. This subunit dimerizes with RelB and mediates gene expression.
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