Cayman TBK1 Monoclonal Antibody (Clone 4E6)

TANK-binding kinase 1 (TBK1) is a non-canonical inhibitor of NF-κB kinase (IKK) that has an essential role in regulating inflammatory responses to pathogens. Following activation of toll-like receptors by viral DNA, TBK1 interacts with various partners such as STING, MAVS, and TANK to phosphorylate and activate interferon regulatory factors (IRFs) 3 and 7 as well as DEAD-box helicase 3 X-linked (DDX3X), which leads to transcriptional activation of pro-inflammatory and antiviral genes including interferon (IFN) subtypes α and β.^, TBK1 induces nuclear translocation of NF-κB to initiate a pro-inflammatory response via phosphorylation of NF-κB inhibitor α (NFκBIα), IKKβ, or NF-κB p65 subunit (RelA). Cytosolic localization of E. coli, Salmonella, and S. pyogenes increases in TBK1^-/- murine embryonic fibroblasts, macrophages, and epithelial cells, suggesting TBK1 maintains vacuolar integrity, which is critical to bacterial clearance. TBK1 phosphorylates the autophagy receptor optineurin to enhance binding of ubiquitin-like microtubule-associated protein light chain 3 (LC3) modifiers and induce autophagic clearance of S. enterica. It also binds to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) non-structural protein 13 (Nsp13), a helicase-triphosphatase and component of the viral replicase-transcriptase complex. Cayman’s TBK1 Monoclonal Antibody (Clone 4E6) can be used for ELISA, Immunohistochemistry (IHC), and Western blot (WB) applications. The antibody recognizes TBK1 at approximately 84 kDa.

WARNING This product is not for human or veterinary use.