Results 281 to 290 of about 25,056,579 (316)
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Sea urchin coelomocyte arylsulfatase: a modulator of the echinoderm clotting pathway.
Integrative Zoology, 2012Sea urchin petalloid coelomocytes effectuate the clotting pathway by undergoing a rapid and dynamic cellular transformation that leads to cellular adhesion and wounds closure.
L. D'Andrea-Winslow +4 more
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Studies on the charge isomers of arylsulfatase A
Biochemical Medicine, 1985Human liver arylsulfatase A was resolved into six fractions by narrow pH range preparative isoelectric focusing. Analytical isoelectric focusing revealed that most enzyme fractions were composed of two adjacent charge isomers. Nevertheless, there was considerable enrichment of charge species which allowed a comparative study of selected properties ...
Katherine K. Tsay +9 more
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Characterization of human arylsulfatase a glycans
International Journal of Biochemistry, 1994Despite numerous studies on arylsulfatase A, the structure of the glycans present in each of its two subunits has not been determined. This is important because the carbohydrate component of human arylsulfatase A synthesized in tumor tissues and transformed cells has been shown to undergo apparent changes.
Bogusław Wójczyk +3 more
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Metachromatic leukodystrophy. Treatment with arylsulfatase-A.
Archives of Neurology, 1969INFANTILE metachromatic leukodystrophy (MLD) is a genetically determined fatal lipidosis, in which sulfatides (cerebroside sulfates) accumulate in various organs but chiefly affect the white matter of the nervous system.1-3The activity of the enzyme ...
H. Greene, G. Hug, W. Schubert
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Pseudodeficiency of arylsulfatase A: a counseling dilemma
Clinical Genetics, 1987Arylsulfatase A (ASA) deficiency is the cause of early and late onset metachromatic leukodystrophy (MLD). Low ASA levels are detected in some healthy individuals who are pseudodefi‐cient (PD). PD individuals can be distinguished, because PD fibroblasts hydrolyze14C‐sulfatide at similar rates to normal fibroblasts.
D. A. Wenger +2 more
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Enhanced breakdown of arylsulfatase A in multiple sulfatase deficiency.
European Journal of Biochemistry, 1982Multiple sulfatase deficiency (mucosulfatidosis) is a lysosomal storage disorder characterized by the decrease in activities of all known sulfatases. To measure the apparent rate of synthesis and the half-life of arylsulfatase A in multiple sulfatase ...
A. Waheed, A. Hasilik, K. von Figura
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Arylsulfatase Activity of Soils
Soil Science Society of America Journal, 1970AbstractThe detection of arylsulfatases (enzymes that hydrolyze aryl sulfates) in soils is reported, and a simple method of assaying soil arylsulfatase activity is described. This method involves colorimetric estimation of the p‐nitrophenol released by arylsulfatase activity when soil is incubated with buffered (pH 5.8) potassium p‐nitrophenyl sulfate ...
M. A. Tabatabai, J. M. Bremner
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A simple chromogenic assay for arylsulfatase A
Clinica Chimica Acta, 1987Arylsulfatase A hydrolyzes the artificial chromogenic substrate 4-nitrocatechol-sulfate at 0 degree C at a rate of 24% of that at 37 degrees C whereas arylsulfatase B is almost inactive at 0 degree C. Based on this observation, a simple assay was developed which permits the accurate determination of low residual arylsulfatase A activities in cultured ...
Ernst Conzelmann, Mary Lee-Vaupel
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Specific determination of arylsulfatase A activity
Experientia, 1986Arylsulfatase activities in biological materials are too low to be detected by the methods available hitherto. A sensitive and specific assay method for arylsulfatase A (AS-A) has been developed in the present study. Ascorbate-2-sulfate is known to be a specific natural substrate of AS-A; the ascorbic acid liberated by the action of AS-A was ...
Y. Seyama, H. Inoue, S. Yamashita
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Arylsulfatase A Pseudodeficiency - Incidence in Poland
European Journal of Human Genetics, 1996Arylsulfatase A (ASA) pseudodeficiency (Pd) was defined as the in vitro measurement of low enzyme activity in a healthy person. A variable incidence of the Pd allele was found in different populations; it was 10-20 times higher than that of metachromatic leukodystrophy (MLD).
Barbara Czartoryska +3 more
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