Serum alpha-N-acetylglucosaminidase: determination, characterization, and corrective activity in Sanifilippo B fibroblasts. 1975

K von Figura, and M Lögering, and H Kresse

Assays for the determination of serum alpha-N-acetylglucosaminidase (EC 3.2.1.50) activity are described employing p-nitrophenyl-N-acetyl-alpha-D-glucosaminide, phenyl-N-acetyl-alpha-D-glucosaminide, and UDP-N-acetylglucosamine as substrates. A log normal distribution of the serum enzyme activity was found. The determination of serum alpha-N-acetylglucosaminidase activity proved to be a valuable tool for the recognition of homozygous and heterozygous carriers of the Sanfilippo B gene.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D009083 Mucopolysaccharidoses Group of lysosomal storage diseases each caused by an inherited deficiency of an enzyme involved in the degradation of glycosaminoglycans (mucopolysaccharides). The diseases are progressive and often display a wide spectrum of clinical severity within one enzyme deficiency. Mucopolysaccharidosis
D009084 Mucopolysaccharidosis III Mucopolysaccharidosis characterized by heparitin sulfate in the urine, progressive mental retardation, mild dwarfism, and other skeletal disorders. There are four clinically indistinguishable but biochemically distinct forms, each due to a deficiency of a different enzyme. Polydystrophic Oligophrenia,Sanfilippo's Syndrome,Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase Deficiency,Heparan Sulfate Sulfatase Deficiency,MPS 3 A,MPS 3 B,MPS 3 C,MPS 3 D,MPS III A,MPS III B,MPS III C,MPS III D,MPS IIIA,MPS IIIB,MPS IIIC,MPS IIID,MPS3A,MPS3B,MPS3C,Mucopolysaccharidosis 3,Mucopolysaccharidosis Type 3 A,Mucopolysaccharidosis Type 3 A Sanfilippo Syndrome,Mucopolysaccharidosis Type 3 B,Mucopolysaccharidosis Type 3 C,Mucopolysaccharidosis Type 3 D,Mucopolysaccharidosis Type IIIA,Mucopolysaccharidosis Type IIIB,Mucopolysaccharidosis Type IIIC,Mucopolysaccharidosis Type IIID,N-Acetyl-alpha-D-Glucosaminidase Deficiency,N-Acetylglucosamine-6-Sulfatase Deficiency,N-Acetylglucosamine-6-Sulfate Sulfatase Deficiency,NAGLU Deficiency,San Filippo's Syndrome,Sanfilippo Syndrome,Sanfilippo Syndrome A,Sanfilippo Syndrome B,Sanfilippo Syndrome C,Sanfilippo Syndrome D,Sulfamidase Deficiency,Acetyl CoA:alpha Glucosaminide N Acetyltransferase Deficiency,Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase Deficiencies,Deficiencies, Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase,Deficiencies, N-Acetyl-alpha-D-Glucosaminidase,Deficiencies, N-Acetylglucosamine-6-Sulfatase,Deficiencies, N-Acetylglucosamine-6-Sulfate Sulfatase,Deficiencies, NAGLU,Deficiencies, Sulfamidase,Deficiency, Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase,Deficiency, N-Acetyl-alpha-D-Glucosaminidase,Deficiency, N-Acetylglucosamine-6-Sulfatase,Deficiency, N-Acetylglucosamine-6-Sulfate Sulfatase,Deficiency, NAGLU,Deficiency, Sulfamidase,MPS IIIDs,Mucopolysaccharidosis IIIs,Mucopolysaccharidosis Type IIIAs,Mucopolysaccharidosis Type IIIBs,Mucopolysaccharidosis Type IIICs,Mucopolysaccharidosis Type IIIDs,N Acetyl alpha D Glucosaminidase Deficiency,N Acetylglucosamine 6 Sulfatase Deficiency,N Acetylglucosamine 6 Sulfate Sulfatase Deficiency,N-Acetyl-alpha-D-Glucosaminidase Deficiencies,N-Acetylglucosamine-6-Sulfatase Deficiencies,N-Acetylglucosamine-6-Sulfate Sulfatase Deficiencies,N-Acetyltransferase Deficiencies, Acetyl-CoA:alpha-Glucosaminide,N-Acetyltransferase Deficiency, Acetyl-CoA:alpha-Glucosaminide,NAGLU Deficiencies,Oligophrenia, Polydystrophic,Oligophrenias, Polydystrophic,Polydystrophic Oligophrenias,San Filippo Syndrome,San Filippos Syndrome,Sanfilippo Syndromes,Sanfilippos Syndrome,Sulfamidase Deficiencies,Sulfatase Deficiencies, N-Acetylglucosamine-6-Sulfate,Sulfatase Deficiency, N-Acetylglucosamine-6-Sulfate,Syndrome, San Filippo's,Syndrome, Sanfilippo,Syndrome, Sanfilippo's,Syndromes, Sanfilippo
D010873 Pinocytosis The engulfing of liquids by cells by a process of invagination and closure of the cell membrane to form fluid-filled vacuoles. Pinocytoses
D004356 Drug Storage The process of keeping pharmaceutical products in an appropriate location. Drug Storages,Storage, Drug,Storages, Drug
D004796 Clinical Enzyme Tests Analyses for a specific enzyme activity, or of the level of a specific enzyme that is used to assess health and disease risk, for early detection of disease or disease prediction, diagnosis, and change in disease status. Enzyme Tests, Clinical,Clinical Enzyme Test,Enzyme Test, Clinical,Test, Clinical Enzyme,Tests, Clinical Enzyme
D005347 Fibroblasts Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules. Fibroblast
D006358 Hot Temperature Presence of warmth or heat or a temperature notably higher than an accustomed norm. Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D006579 Heterozygote An individual having different alleles at one or more loci regarding a specific character. Carriers, Genetic,Genetic Carriers,Carrier, Genetic,Genetic Carrier,Heterozygotes
D006596 Hexosaminidases Enzymes that catalyze the hydrolysis of N-acylhexosamine residues in N-acylhexosamides. Hexosaminidases also act on GLUCOSIDES; GALACTOSIDES; and several OLIGOSACCHARIDES. Galactosaminidases,Hexosaminidase,Galactosaminidase,Glucosaminidase,Glucosaminidases

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