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. 1978 May 11;524(1):109-20.
doi: 10.1016/0005-2744(78)90109-2.

Pilot scale purification of alpha-galactosidase A from Cohn fraction IV-1 of human plasma

Pilot scale purification of alpha-galactosidase A from Cohn fraction IV-1 of human plasma

D F Bishop et al. Biochim Biophys Acta. .

Abstract

Human plasma alpha-galactosidase A (alpha-D-galactoside galactohydrolase, EC 3.2.1.22) was purified 7000-fold over plasma levels from Cohn Fraction IV-1. The yield per kg starting material averaged 11 000 units (nmol galactose liberated per h) and the specific activity was about 600 units per mg protein with 4-methylumbelliferyl-alpha-D-galactoside. The ratio of 4-methylumbelliferyl-alpha-galactosidase to ceramide trihexosidase activities was 6.2. Both activities were heat labile and exhibited the same relative mobilities on polyacrylamide gel electrophoresis. Enzymatic activity was stable for at least 4 months at 4 and -20 degrees C. The endotoxin concentration of this preparation averaged 0.26 mg per mg protein.

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