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Literature summary for 3.2.1.49 extracted from

  • Kulik, N.; Weignerova, L.; Filipi, T.; Pompach, P.; Novak, P.; Mrazek, H.; Slamova, K.; Bezouska, K.; Kren, V.; Ettrich, R.
    The alpha-galactosidase type A gene aglA from Aspergillus niger encodes a fully functional alpha-N-acetylgalactosaminidase (2010), Glycobiology, 20, 1410-1419.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.73
-
2-nitrophenyl-alpha-N-acetylgalactosaminide pH not specified in the publication, temperature not specified in the publication Aspergillus niger

Organism

Organism UniProt Comment Textmining
Aspergillus niger A2QL72 bifunctional alpha-galactosidase and alpha-N-acetylgalactosaminidase
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1
-
substrate 2-nitrophenyl-alpha-D-galactoside, pH not specified in the publication, temperature not specified in the publication Aspergillus niger
33.5
-
substrate 2-nitrophenyl-alpha-N-acetylgalactosaminide, pH not specified in the publication, temperature not specified in the publication Aspergillus niger

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-nitrophenyl-alpha-D-galactoside + H2O
-
Aspergillus niger 2-nitrophenol + alpha-D-galactose
-
?
2-nitrophenyl-alpha-N-acetylgalactosaminide + H2O
-
Aspergillus niger 2-nitrophenol + alpha-N-acetylgalactosamine
-
?
additional information preference for alpha-N-acetyl-D-galactosaminide over alpha-D-galactoside. alpha-N-acetylgalactosaminidase activity uses a retaining mechanism Aspergillus niger ?
-
?

Synonyms

Synonyms Comment Organism
AglA
-
Aspergillus niger

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55
-
-
Aspergillus niger

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
1.8
-
-
Aspergillus niger

pI Value

Organism Comment pI Value Maximum pI Value
Aspergillus niger isoelectric focusing
-
4.8