CST, 19781S, Phospho-STING (Ser366) (D7C3S) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying STING (Ser366) phosphate. Validated for Western Blotting. Available in 3 sizes. Highly specific and rigorously validated in-house, Phospho-STING (Ser366) (D7C3S) Rabbit Monoclonal Antibody (CST #19781) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 18889 . Protocol Available protocols: Western Blotting Specificity / Sensitivity Phospho-STING (Ser366) (D7C3S) Rabbit Monoclonal Antibody recognizes endogenous levels of STING protein only when phosphorylated at Ser366. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser366 of human STING protein. Background Stimulator of interferon genes (STING, TMEM173, MITA) is a transmembrane adaptor protein that is a critical component of the cellular innate immune response to pathogenic cytoplasmic DNA (1,2). STING is a ubiquitously expressed protein found predominantly in the ER (1). The enzyme cGAMP synthase (cGAS) produces the second messenger cyclic-GMP-AMP (cGAMP) in response to cytoplasmic DNA (3,4). cGAMP binds and activates STING (3,4). In addition, detection of cytoplasmic DNA by nucleic acid sensors, including DDX41 or IFI16, results in STING activation (5,6). Following activation, STING translocates with TBK1 to perinuclear endosomes (7). The TBK1 kinase phosphorylates and activates interferon regulatory factors (IRFs) and NF-κB, which leads to the induction of type I interferon and other immune response genes (1,2,7). Following binding of cyclic dinucleotides, STING is phosphorylated by TBK1 at Ser366 (Ser365 in mouse), leading to IRF-3 activation and type I interferon upregulation (8). Alternate Names endoplasmic reticulum IFN stimulator; Endoplasmic reticulum interferon stimulator; ERIS; FLJ38577; hMITA; hSTING; Mediator of IRF3 activation; MITA; mitochondrial mediator of IRF3 activation; MPYS; N-terminal methionine-proline-tyrosine-serine plasma membrane tetraspanner; NET23; SAVI; Stimulator of interferon genes protein; stimulator of interferon protein; stimulator of interferon response cGAMP interactor 1; STING; STING-beta; STING1; TM173; TMEM173; Transmembrane protein 173 Specification REACTIVITY: H SENSITIVITY: Endogenous MW (kDa): 40 Source/Isotype: Rabbit IgG