Any feedback?
Please rate this page
(enzyme.php)
(0/150)

BRENDA support

BRENDA Home
show all | hide all No of entries

Information on EC 3.2.1.50 - alpha-N-acetylglucosaminidase and Organism(s) Homo sapiens

for references in articles please use BRENDA:EC3.2.1.50
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
EC Tree
IUBMB Comments
Hydrolyses UDP-N-acetylglucosamine.
Specify your search results
Select one or more organisms in this record: ?
This record set is specific for:
Homo sapiens
Show additional data
Do not include text mining results
Include (text mining) results
Include results (AMENDA + additional results, but less precise)
Word Map
The taxonomic range for the selected organisms is: Homo sapiens
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
glycosidase, alpha-n-acetylglucosaminidase, exo-glycosidase, n-acetyl-alpha-d-glucosaminidase, heparan n-sulfatase, bmn 250, n-acetyl-alpha-glucosaminidase, alpha-acetylglucosaminidase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2-acetamido-2-deoxy-alpha-D-glucoside acetamidodeoxyglucohydrolase
-
-
alpha-acetylglucosaminidase
-
alpha-N-acetylglucosaminidase
-
-
BMN 250
tralesinidase alfa, a fusion protein of lysosomal alpha-N-acetylglucosaminidase with insulin-like growth factor 2
glycosidase
-
-
heparan N-sulfatase
-
-
N-acetyl-alpha-D-glucosaminidase
-
-
N-acetyl-alpha-glucosaminidase
-
-
NAGLU
Sanfilippo b corrective factor
-
previously
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
hydrolysis of N-glycosyl bond
-
-
hydrolysis of O-glycosyl bond
-
-
-
-
PATHWAY SOURCE
PATHWAYS
SYSTEMATIC NAME
IUBMB Comments
alpha-N-acetyl-D-glucosaminide N-acetylglucosaminohydrolase
Hydrolyses UDP-N-acetylglucosamine.
CAS REGISTRY NUMBER
COMMENTARY hide
37288-40-7
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
(GlcNAcalpha(1-4))n + H2O
(GlcNAcalpha(1-4))n-1 + 2-(acetylamino)-2-deoxy-beta-D-glucopyranose
show the reaction diagram
4-methylumbelliferyl 2-acetamido-2-deoxy-alpha-D-glucopyranoside + H2O
?
show the reaction diagram
-
-
-
?
4-methylumbelliferyl N-acetyl-alpha-D-glucosaminide + H2O
4-methylumbelliferone + N-acetyl-alpha-D-glucosamine
show the reaction diagram
4-methylumbelliferyl-2-acetamide-2-deoxy-alpha-D-glucopyranoside + H2O
4-methylumbelliferol + 2-acetamide-2-deoxy-alpha-D-glucopyranose
show the reaction diagram
-
-
-
-
?
heparan sulfate + H2O
N-acetyl-alpha-D-glucosamine
show the reaction diagram
-
-
-
?
heparin + H2O
N-acetyl-alpha-D-glucosamine + ?
show the reaction diagram
-
-
-
?
methylumbelliferyl-N-acetyl-alpha-D-glucosaminide + H2O
methylumbelliferone + N-acetyl-alpha-D-glucosamine
show the reaction diagram
O-(alpha-acetamido-2-deoxy-D-glucopyranosyl)-(1-3)-[L-6,3H]idoronic acid + H2O
?
show the reaction diagram
-
-
-
?
o-nitrophenyl-N-acetyl-alpha-D-glucosaminide + H2O
o-nitrophenol + N-acetyl-alpha-D-glucosamine
show the reaction diagram
p-nitrophenyl-N-acetyl-alpha-D-glucosaminide + H2O
p-nitrophenol + N-acetyl-alpha-D-glucosamine
show the reaction diagram
phenyl-N-acetyl-alpha-D-glucosaminide + H2O
phenol + N-acetyl-alpha-D-glucosamine
show the reaction diagram
UDP-N-acetyl-alpha-D-glucosamine + H2O
uridine-5'-diphosphate + N-acetyl-alpha-D-glucosamine
show the reaction diagram
-
-
-
-
?
uridine-5'-diphospho-N-acetyl-alpha-D-glucosamine
uridine-5'-diphosphate + N-acetyl-alpha-D-glucosamine
show the reaction diagram
additional information
?
-
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
(GlcNAcalpha(1-4))n + H2O
(GlcNAcalpha(1-4))n-1 + 2-(acetylamino)-2-deoxy-beta-D-glucopyranose
show the reaction diagram
additional information
?
-
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Cu2+
-
complete inhibition at 10 mM
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
2-acetamido-1,2-dideoxynojirimycin
-
competitive inhibition
6-acetamido-6-deoxycastanospermine
-
competitive inhibition
dermatan sulfate
-
competitive inhibition at 1 mM with p-nitrophenyl-alpha-N-acetylglucosaminide and UDP-N-acetylglucosamine as substrates
iodoacetate
-
complete inhibition at 2.5 mM
mouse anti-serum
-
raised in BALB/c mice, complete inhibition at pH 7.5
-
p-chloromercuribenzoate
-
complete inhibition at 0.005 mM
ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
bovine serum albumin
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1.07 - 5.34
4-methylumbelliferyl 2-acetamido-2-deoxy-alpha-D-glucopyranoside
0.13 - 0.22
methylumbelliferyl-N-acetyl-alpha-D-glucosaminide
0.0166
O-(alpha-acetamido-2-deoxy-D-glucopyranosyl)-(1-3)-[L-6,3H]idoronic acid
-
pH 4.5, 37°C, with bovine serum albumin
0.043 - 0.61
o-nitrophenyl-alpha-N-acetylglucosaminide
-
0.23-0.25 in the presence of 0.025% bovine serum albumin
0.13 - 0.2
p-nitrophenyl-alpha-N-acetylglucosaminide
0.12 - 1.6
phenyl-alpha-N-acetylglucosaminide
0.39
UDP-N-acetylglucosamine
-
0.58 in the presence of 0.025% bovine serum albumin
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.000009
-
methylumbelliferyl-N-acetyl-alpha-D-glucosaminide as substrate
0.00012
-
phenyl-N-acetyl-alpha-D-glucosaminide as substrate
0.001
-
mutant with genotype W168X/S522P
0.00117
-
mutant with genotype R643C/R533X
0.0017
-
mutant with genotype R234C/R234C
0.0025
-
mutant with genotype R234C/R234C
0.0027
-
mutant with genotype R234C/M1K
0.003
-
mutant with genotype R565W/R565W
0.00317
-
mutant with genotype R565W/R565W
0.115 - 1.2
-
purified enzyme, p-nitrophenyl-N-acetyl-alpha-D-glucosaminide as substrate
0.58
-
purified enzyme, methylumbelliferyl-N-acetyl-alpha-D-glucosaminide as substrate
1.057
-
-
additional information
-
0.15-0.483 mmol/min/mg no mutation
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4
-
methylumbelliferyl-N-acetyl-alpha-D-glucosaminide
4.2
-
UDP-N-acetylglucosamine
5.7
-
sucrose-stabilized pH-gradient, after treatment with neuraminidase
pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
3.5 - 6.5
-
-
4.3 - 6.5
-
-
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
-
of cells CHO cells stable transfected
Manually annotated by BRENDA team
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
ANAG_HUMAN
743
0
82266
Swiss-Prot
Secretory Pathway (Reliability: 2)
PDB
SCOP
CATH
UNIPROT
ORGANISM
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
240000
-
native enzyme, sucrose density gradient centrifugation
300000 - 307000
-
gel filtration
79000
-
x * 79000, two isoforms of recombinant enzyme with MW of 89000 Da and 79000 Da differ in their glycosylation pattern, SDS-PAGE
80000
-
SDS-PAGE
81000
-
alpha, beta, 1 * 86500 + 1 * 81000, SDS-PAGE
83000
-
SDS-PAGE
86000
-
SDS-PAGE after reduction and alkylation of native enzyme
86500
-
alpha, beta, 1 * 86500 + 1 * 81000, SDS-PAGE
89000
-
x * 89000, two isoforms of recombinant enzyme with MW of 89000 Da and 79000 Da differ in their glycosylation pattern, SDS-PAGE
90000
-
2 * 90000, monomer of 90000 and dimer in a ratio 1:2, gel filtration
90000 - 180000
-
monomer of 90000 and dimer of 180000 in the ratio 1:2, gel filtration
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
dimer
homotrimer
x-ray crystallography
multimer
-
-
POSTTRANSLATIONAL MODIFICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
glycoprotein
phosphoprotein
-
the specific phosphorylation of recombinant enzyme secreted from transfected CHO cells is significantly lower when compared with a control lysosomal enzyme
CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
sitting drop vapor diffusion method, using 0.01 M nickel chloride, 0.1M Tris (pH 8.5), 1.0 M lithium sulfate
PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
G304V
-
decrease in enzymatic activity
M1K
-
decrease in enzymatic activity
R234C
-
decrease in enzymatic activity
R533X
-
no enzymatic activity
R565P
-
naturally occurring mutation, five patients with the homozygous mutation in the alpha-N-acetylglucosaminidase gene from the Okinawa islands in Japan show the Sanfilippo type B syndrome, heterozygotes show no phenotype
R565W
-
decrease in enzymatic activity
R643C
-
decrease in enzymatic activity
S522P
-
decrease in enzymatic activity
W147X
-
no enzymatic activity
W168X
-
decrease in enzymatic activity
additional information
pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
3 - 8
-
stable at 0°C and 23°C for 8 h
208690
4.6 - 8.1
-
-
208693
5 - 9
6.5 - 8.5
-
-
208688
TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0 - 50
-
stable at 0°C and 23°C for 24 h, at 37°C loss of 45%, at 50°C loss of 85% of activity
50 - 70
GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
no proteolysis with pronase, bromelain and trypsin, 15% loss of activity after 30 min incubation with papain
-
OXIDATION STABILITY
ORGANISM
UNIPROT
LITERATURE
oxidation by periodate causes loss of 28% of activity after treatment with 10 mM at 4°C for 240 min
-
208681
STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
-20°C, 0.9% NaCl, cultivated cells centrifuged at 1500 * g, 2 weeks, no loss of activity
-
4°C, 10 mM sodium phosphate buffer, pH 7.2, 150 mM NaCl, 1 year, no significant loss of activity
-
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
butyl-Sepharose 4 column chromatography and Q-Sepharose column chromatography
recombinant enzyme
-
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
DNA and amino acid sequence determination of Sanfilippo type B syndrome patients
-
expressed in Chinese hamster ovary cells
-
expressed in CHO cells
expression in CHO-K1 cells
-
expression of active alpha-N-acetylglucosaminidase/TAT chimerae in cultured Spodoptera frugiperda cells, establishment of an expression method for optimization of scale-up
-
NAGLU-encoding gene, located on chromosome 17q21.1, DNA and amino acid sequence determination and analysis, genotyping
-
R297X and F48L mutant alleles are engineered into the wild-type alpha-N-acetylglucosaminidase and expressed in Chinese hamster ovary cells. Wild-type enzyme and F48L mutant alleles are retrovirally expressed in mucopolysaccharidosis type IIIB skin fibroblasts
-
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
medicine
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Salvatore, D.; Bonatti, S.; Di Natale, P.
Lysosomal alpha-N-acetylglucosamidase: purification and characterization of the human urinary enzyme
Bull. Mol. Biol. Med.
9
111-121
1984
Homo sapiens
-
Manually annotated by BRENDA team
Roehrborn, W.; von Figura, K.
Human placenta alpha-N-acetylglucosaminidase: purification, characterization and demonstration of multiple recognition forms
Hoppe-Seyler's Z. Physiol. Chem.
359
1353-1362
1978
Homo sapiens
Manually annotated by BRENDA team
von Figura, K.
Human alpha-N-acetylglucosaminidase. 1. Purification and properties
Eur. J. Biochem.
80
525-533
1977
Homo sapiens
-
Manually annotated by BRENDA team
von Figura, K.
Human alpha-N-acetylglucosaminidase. 2. Activity towards natural substrates and multiple recognition forms
Eur. J. Biochem.
80
535-542
1977
Homo sapiens
Manually annotated by BRENDA team
Hultberg, B.; Lindsten, J.; Sjblad, S.
Molecular forms and activities of glycosidases in cultures of amniotic-fluid cells
Biochem. J.
155
599-605
1976
Homo sapiens
Manually annotated by BRENDA team
von Figura, K.; Kresse, H.
Sanfilippo disease type B: presence of material cross reacting with antibodies against alpha-N-acetylglucosaminidase
Eur. J. Biochem.
61
581-588
1976
Homo sapiens
Manually annotated by BRENDA team
Sasaki, T.; Sukegawa, K.; Masue, M.; Fukuda, S.; Tomatsu, S.; Orii, T.
Purification and partial characterization of alpha-N-acetylglucosaminidase from human liver
J. Biochem.
110
842-846
1991
Homo sapiens
Manually annotated by BRENDA team
Sasaki, T.; Sukegawa, K.; Masue, M.; Fukuda, S.; Tomatsu, S.; Inoue, N.; Orii, T.
Mucopolysaccharidosis type III B: Purification of alpha-N-acetylglucosaminidase from human liver
Connect. Tissue Res.
23
156-157
1992
Homo sapiens
-
Manually annotated by BRENDA team
Den Tandt, W.R.; Scharpe, S.
Micromethod determination of N-acetyl-alpha-D-glucosaminidase in human leukocytes and study of some of its characteristics
Int. J. Biochem.
25
209-212
1993
Homo sapiens
Manually annotated by BRENDA team
Zhao, Z.; Yazdani, A.; Shen, Y.; Sun, Z.S.; Bailey, J.; Caskey, C.T.; Lee, C.C.
Molecular dissection of a cosmid gene from a gene-rich region in 17q21 and characterization of a candidate gene for alpha-N-acetylglucosaminidase with two cDNA isoforms
Mamm. Genome
7
686-690
1996
Homo sapiens
Manually annotated by BRENDA team
Zhao, K.W.; Neufeld, E.F.
Purification and characterization of recombinant human alpha-N-acetylglucosaminidase secreted by chinese hamster ovary cells
Protein Expr. Purif.
19
202-211
2000
Homo sapiens
Manually annotated by BRENDA team
Yogalingam, G.; Weber, B.; Meehan, J.; Rogers, J.; Hopwood, J.J.
Mucopolysaccharidosis type IIIB: characterisation and expression of wild-type and mutant recombinant alpha-N-acetylglucosaminidase and relationship with sanfilippo phenotype in an attenuated patient
Biochim. Biophys. Acta
1502
415-425
2000
Homo sapiens
Manually annotated by BRENDA team
Weber, B.; Hopwood, J.J.; Yogalingam, G.
Expression and characterization of human recombinant and alpha-N-acetylglucosaminidase
Protein Expr. Purif.
21
251-259
2001
Homo sapiens
Manually annotated by BRENDA team
Chinen, Y.; Tohma, T.; Izumikawa, Y.; Uehara, H.; Ohta, T.
Sanfilippo type B syndrome: five patients with an R565P homozygous mutation in the alpha-N-acetylglucosaminidase gene from the Okinawa islands in Japan
J. Hum. Genet.
50
357-359
2005
Homo sapiens
Manually annotated by BRENDA team
Bandsmer, J.C.; Campbell, T.N.; Cheyne, I.; Choy, F.Y.
Expression of active alpha-N-acetylglucosaminidase/TAT chimerae in cultured Spodoptera frugiperda cells
Protein Pept. Lett.
13
353-356
2006
Homo sapiens
Manually annotated by BRENDA team
Civallero, G.; Michelin, K.; de Mari, J.; Viapiana, M.; Burin, M.; Coelho, J.C.; Giugliani, R.
Twelve different enzyme assays on dried-blood filter paper samples for detection of patients with selected inherited lysosomal storage diseases
Clin. Chim. Acta
372
98-102
2006
Homo sapiens
Manually annotated by BRENDA team
Mangas, M.; Nogueira, C.; Prata, M.J.; Lacerda, L.; Coll, M.J.; Soares, G.; Ribeiro, G.; Amaral, O.; Ferreira, C.; Alves, C.; Coutinho, M.F.; Alves, S.
Molecular analysis of mucopolysaccharidosis type IIIB in Portugal: evidence of a single origin for a common mutation (R234C) in the Iberian Peninsula
Clin. Genet.
73
251-256
2008
Homo sapiens
Manually annotated by BRENDA team
Champion, K.J.; Basehore, M.J.; Wood, T.; Destree, A.; Vannuffel, P.; Maystadt, I.
Identification and characterization of a novel homozygous deletion in the alpha-N-acetylglucosaminidase gene in a patient with Sanfilippo type B syndrome (mucopolysaccharidosis IIIB)
Mol. Genet. Metab.
100
51-56
2010
Homo sapiens
Manually annotated by BRENDA team
Fu, H.; DiRosario, J.; Kang, L.; Muenzer, J.; McCarty, D.M.
Restoration of central nervous system alpha-N-acetylglucosaminidase activity and therapeutic benefits in mucopolysaccharidosis IIIB mice by a single intracisternal recombinant adeno-associated viral type 2 vector delivery
J. Gene Med.
12
624-633
2010
Homo sapiens (P54802), Homo sapiens
Manually annotated by BRENDA team
Birrane, G.; Dassier, A.L.; Romashko, A.; Lundberg, D.; Holmes, K.; Cottle, T.; Norton, A.W.; Zhang, B.; Concino, M.F.; Meiyappan, M.
Structural characterization of the alpha-N-acetylglucosaminidase, a key enzyme in the pathogenesis of Sanfilippo syndrome B
J. Struct. Biol.
205
65-71
2019
Homo sapiens (P54802), Homo sapiens
Manually annotated by BRENDA team
Yogalingam, G.; Luu, A.R.; Prill, H.; Lo, M.J.; Yip, B.; Holtzinger, J.; Christianson, T.; Aoyagi-Scharber, M.; Lawrence, R.; Crawford, B.E.; LeBowitz, J.H.
BMN 250, a fusion of lysosomal alpha-N-acetylglucosaminidase with IGF2, exhibits different patterns of cellular uptake into critical cell types of Sanfilippo syndrome B disease pathogenesis
PLoS ONE
14
e0207836
2019
Homo sapiens (P54802), Homo sapiens
Manually annotated by BRENDA team