Purification of bovine glia maturation factor and characterization with monoclonal antibody
- 1 December 1985
- journal article
- research article
- Published by American Chemical Society (ACS) in Biochemistry
- Vol. 24 (27), 8070-8074
- https://doi.org/10.1021/bi00348a035
Abstract
Glia maturation factor (GMF) is purified 100,000-fold to apparent homogeneity from bovine brains by a procedure consisting of ammonium sulfate precipitation, column chromatography with diethylaminoethyl-Sephacel, Sephadex G-75, and hydroxylapatite, and a final step using C4 reverse-phase high-performance liquid chromatography. The product shows a single protein band in sodium dodecyl sulfate-polyacrylamide gel. It has a molecular weight of 14,000 and an isoelectric point of pH 5.2. Purified GMF stimulates cultured astroblasts to proliferate and to grow out cell processes with half-maximal activity at 8 ng/mL. A monoclonal antibody raised against partially purified GMF adsorbs the activity of pure GMF and immunologically binds the putative GMF protein band.This publication has 4 references indexed in Scilit:
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