プタ赤血球アデニレートキナーゼの分離と性質について

概要

論文の詳細を見る
Porcine erythrocyte adenylate kinase showed three components, AK_a, AK_b and AK_c, designated on the basis of the distance of migration from their origin to the anode in starch gel electrophoresis. By isoelectrofocusing, 96% of the total erythrocyte adenylate kinase focused at pH 9.25, and this predominant enzyme form corresponded to AK_a in starch gel electrophoresis. The predominant enzyme form, AK_a, was purified at approximately 31,000 fold from the porcine erythrocyte in an overall yield of 45% by affinity chromatography on a column of Blue Dextran-Sepharose 4B, substrate elution from a column of phosphocellulose, and by isoelectrofocusing. The purified AK_a had a specific activity of 2,100 units per mg of enzyme and migrated in gel electrophoresis as a single band having a molecular weight of 21,500. The amino acid composition of AK_a was the same as that of the skeletal muscle enzyme. Peptide mapping showed a correspondence of all spots of the tryptic peptides from the erythrocyte and skeletal muscle enzyme preparations. These results strongly suggest that the predominant adenylate kinase in porcine erythrocyte is identical to porcine skeletal muscle adenylate kinase.
社団法人日本獣医学会の論文
1978-06-25