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  • Title: Phosphorylation of two human neurochordins by mammalian casein kinase 1.
    Author: Elizarov SM, Preobrazhensky AA.
    Journal: Brain Res Mol Brain Res; 1993 Sep; 19(4):310-2. PubMed ID: 7694031.
    Abstract:
    Neurochordins are a family of immunologically interrelated high-M(r) neural tissue glycoproteins which includes four major molecular species and several minor ones. Incubation of the total preparation of immunoaffinity-isolated neurochordins with ATP and rabbit casein kinase 1 resulted in phosphorylation of two neurochordin polypeptides, A and B3. The maximum levels of modification were 7-8 and 2 mol of 32P incorporated per 1 mol of polypeptide, respectively. Phosphoamino acid analysis of the phosphorylated neurochordins showed that casein kinase 1 modified exclusively serine residues in both polypeptides. Casein kinase 2 was not effective in phosphorylating neurochordins in vitro.
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