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Purification and certain properties of pyruvate decarboxylase from bovine brain


, : Purification and certain properties of pyruvate decarboxylase from bovine brain. Biokhimiia 41(6): 1028-1032

A procedure of isolation and purification of pyruvate decarboxylase (PDC) from bovine brain is worked out. 350-fold purified enzyme preparation was homogenous under polyacrylamide gel electrophoresis. Molecular weight of PDC from bovine brain was estimated to be 180 000 by means of gel chromatography through Sephadex G-200. The protein was eluted in two peaks (with molecular weight of 180 000 and 90 000 respectively). After the treatment of the enzyme preparation with 6 M guanidine chloride. Probably, partial dissociation of the enzyme molecule into two subunits takes place in this case. Data on paper chromatography confirmed that highly purified PDC preparations from bovine brain were isolated as apoenzyme, since they were almost free of TPP.

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PMID: 1027485


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