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  • Title: Purification of glial fibrillary acidic protein (GFAP) from normal bovine brain.
    Author: Fukuyama R, Fushiki S, Fujita S.
    Journal: J Neurosci Methods; 1991 Dec; 40(2-3):133-7. PubMed ID: 1800850.
    Abstract:
    Glial fibrillary acidic protein (GFAP) was purified from normal bovine brain by a modification of the procedure used to isolate vimentin in order to avoid contamination by other cytoskeletal components: vimentin, neurofilament triplet proteins, tubulin and actin. GFAP is thought to be separated from vimentin in the DE cellulose column chromatography step. The three other major proteins were also separable through ion exchange and gel filtration column chromatographies. A purified 49 kDa polypeptide was estimated to be GFAP from peptide mapping and subsequent immunoblotting analysis. We obtained 4.4 mg GFAP/1 g bovine brain white matter in less than 3 days. The polyclonal antibody raised against purified GFAP was able to detect 49 kDa GFAP by immunoblotting analysis. This isolation method is simpler and more rapid than previous methods.
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