Affiliation:
1. Department of Biochemistry, Queen Elizabeth College, Campden Hill, London W.8, U.K.
Abstract
Antisera were raised to a partially purified preparation of human liver hexosaminidase and to highly purified preparations of hexosaminidase isoenzymes A and B. All the antisera precipitated the enzyme in an enzymically active form, which could be located on immunodiffusion and immunoelectrophoretic gels by using a histochemical substrate. The antisera to the purified isoenzymes were shown to react with hexosaminidase from human liver, kidney, brain and spleen, but did not cross-react with human liver β-glucosidase, β-galactosidase, α-mannosidase, β-xylosidase, arylsulphatase or acid phosphatase. Hexosaminidases A and B were immunologically identical. The immunological properties of the hexosaminidases from livers of patients with three types of GM2-gangliosidoses were closely similar. No evidence could be found for cross-reacting material in enzyme-deficient states.
Subject
Cell Biology,Molecular Biology,Biochemistry
Cited by
69 articles.
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