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. 1984 Mar;95(3):611-7.
doi: 10.1093/oxfordjournals.jbchem.a134649.

Large scale preparation and crystallization of neuron-specific enolase

N Ishioka, T Isobe, T Kadoya, T Okuyama, T Nakajima
Free article

Large scale preparation and crystallization of neuron-specific enolase

N Ishioka et al. J Biochem. 1984 Mar.
Free article

Abstract

A simple method has been developed for the large scale purification of neuron-specific enolase [EC 4.2.1.11]. The method consists of ammonium sulfate fractionation of brain extract, and two subsequent column chromatography steps on DEAE Sephadex A-50. The chromatography was performed on a short (25 cm height) and thick (8.5 cm inside diameter) column unit that was specially devised for the large scale preparation. The purified enolase was crystallized in 0.05 M imidazole-HCl buffer containing 1.6 M ammonium sulfate (pH 6.39), with a yield of 0.9 g/kg of bovine brain tissue.

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