CST, 31304S, Phospho-Optineurin (Ser177) (E8L9I) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying optineurin (Ser177) phosphate. Validated for Western Blotting,Immunoprecipitation. Available in 2 sizes. Highly specific and rigorously validated in-house, Phospho-Optineurin (Ser177) (E8L9I) Rabbit Monoclonal Antibody (CST #31304) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:100 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. Protocol Available protocols: Western Blotting, Immunoprecipitation Specificity / Sensitivity Phospho-Optineurin (Ser177) (E8L9I) Rabbit Monoclonal Antibody recognizes endogenous levels of optineurin protein only when phosphorylated at Ser177. Species Reactivity: Human, Mouse Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic phospho-peptide corresponding to residues surrounding Ser177 of human optineurin protein. Background Optineurin is a signaling protein involved in maintenance of the Golgi complex, membrane trafficking, NF-κB, and interferon signaling. Mutations in the gene encoding optineurin have been associated with human diseases including glaucoma, Paget disease of bone, and amyotrophic lateral sclerosis (ALS) (1-2). Optineurin is thought to contribute to these pathologies through regulation of inflammatory signaling, autophagy, and mitophagy (1, 3). The NF-κB-activating kinase/TANK-binding kinase 1 (NAK/TBK1) phosphorylates optineurin at serine 177, regulating optineurin's role in autophagy and mitophagy (4-6). The tumor suppressor HACE1 ubiquitylates optineurin, promoting the interaction of optineurin with the autophagy receptor p62/SQSTM1 (7). Phosphorylation of optineurin at serine 177 by TBK1 enhances binding to LC3 and promotes autophagic clearance (8). Additional studies also suggest that serine 177 is phosphorylated during mitosis by PLK1 (9). In addition to serine 177, TBK1 also phosphorylates optineurin at serine 473 and 513, which can enhance its binding to ubiquitin chains and promote mitophagy (5,6). Alternate Names ALS12; E3-14.7K-interacting protein; FIP-2; FIP2; GLC1E; HIP-7; HIP7; Huntingtin interacting protein L; Huntingtin yeast partner L; Huntingtin-interacting protein 7; Huntingtin-interacting protein L; HYPL; NEMO-related protein; NRP; Optic neuropathy-inducing protein; Optineurin; OPTN; TFIIIA-IntP; Transcription factor IIIA-interacting protein; transcrption factor IIIA-interacting protein; tumor necrosis factor alpha-inducible cellular protein containing leucine zipper domains Specification REACTIVITY: H M SENSITIVITY: Endogenous MW (kDa): 75 Source/Isotype: Rabbit IgG