The antibody detects endogenous level of Keratin 8 only when phosphorylated at serine 74.
纯化方法
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography usingepitope-specific phosphopeptide. The antibody against non-phosphopeptide was removedby chromatography using non-phosphopeptide corresponding to the phosphorylation site.
免疫原
Peptide sequence around phosphorylation site of pSer74 (L-L-S (p) -P-L) derived from Human Keratin 8 (CK8) . Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates.
Keratin 8 is a member of the type II keratin family clustered on the long arm of chromosome 12. Type I and type II keratins heteropolymerize to form intermediate-sized filaments in the cytoplasm of epithelial cells. The product of this gene typically dimerizes with keratin 18 to form an intermediate filament in simple single-layered epithelial cells. This protein plays a role in maintaining cellular structural integrity and also functions in signal transduction and cellular differentiation. Mutations in this gene cause cryptogenic cirrhosis.