Results 171 to 180 of about 2,405 (204)
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Diagnosis of arylsulfatase A deficiency
American Journal of Medical Genetics, 1992AbstractMetachromatic leukodystrophy (MLD) is a neurologically devastating autosomal recessive disorder in humans associated with deficient arylsulfatase A activity. However, clinically normal individuals described as being pseudo‐arylsulfatase‐A deficient also demonstrate the same deficiency.
Z G, Li, J S, Waye, P L, Chang
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International Journal of Biological Macromolecules, 2017
A library of Pseudoalteromonas carrageenovora arylsulfatase mutants was constructed by introducing random mutagenesis using error-prone PCR. After screening, one mutant strain was obtained whose arylsulfatase had improved thermal stability. Protein sequence analysis revealed one amino acid substitution of H260L.
Yanbing, Zhu +6 more
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A library of Pseudoalteromonas carrageenovora arylsulfatase mutants was constructed by introducing random mutagenesis using error-prone PCR. After screening, one mutant strain was obtained whose arylsulfatase had improved thermal stability. Protein sequence analysis revealed one amino acid substitution of H260L.
Yanbing, Zhu +6 more
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Arylsulfatase Activity of Soils
Soil Science Society of America Journal, 1970Abstract The 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 ...
M. A. Tabatabai, J. M. Bremner
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Arylsulfatase des menschlichen Harns
Archives of Biochemistry and Biophysics, 1957Zusammenfassung 1. 1. Die Harn-Sulfatase lasst sich in 100-fache Anreicherung in der Acetonfallung gut nachweisen, es kann auf diese Weise die Reaktionszeit auf zwei Stunden verkurzt werden, besonders wenn man als Substrat einen organischen Ester der Schwefelsaure verwendet, der sich durch gute Spaltbarkeit auszeichnet, wie es beim p -Nitro ...
R. Ammon, K.-H. Ney
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Arylsulfatase in coelomocytes ofHolothuria polii
Experientia, 1988Holothuria polii coelomocytes possess arylsulfatase enzymes. Two pH optima were found for arylsulfatase activity in cell lysate preparations, one at pH 5.0 and the other at pH 5.8. Both increased after injection of zymosan particles or formalinized sheep red blood cells (fSR-BC), indicating an active role of the enzymes during phagocytosis of ...
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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.
P, Laidler +3 more
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A Km mutant of arylsulfatase A
Clinica Chimica Acta, 1982Abstract The apparent Michealis constant for p-nitrocatechol sulfate of arylsulfatase A of fibroblasts of a metachromatic leukodystrophy patient has been determined and compared to that of normal controls. Control cells gave an apparent Km of 0.7 mmol/l, while the apparent Km of patient's cells was determined to be 19.8 mmol/l.
A M, Harben +3 more
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Interstrain variation of murine arylsulfatase C
Experientia, 1979A method has been developed for the assay of arylsulfatase C in tissue extracts containing arylsulfatases A and B. Significant variation of enzyme activity was observed among 26 inbred murine strains. Activity differences were apparent at all stages evaluated between 1 and 70 days postnatal age.
Nelson, K, Daniel, W L
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Arylsulfatases in bilharziasis.
Egyptian journal of bilharziasis, 1978Arylsulfatase A and B in urine have been estimated in 18 normal subjects and 50 bilharziasis patients. The bilharziasis patients were divided into two groups according to the type of infeciton. Those with bilharziasis haematobian type of infection and those with the bilharziasis mansoni type.
E Z, Khafagy, H E, Raziky, A F, Galal
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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 ...
H, Inoue, Y, Seyama, S, Yamashita
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