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Literature summary for 3.2.1.49 extracted from

  • Itoh, T.; Uda, Y.
    alpha-N-Acetylgalactosaminidase from squid liver: purification and characterization of two enzymes (1984), J. Biochem., 95, 959-970.
    View publication on PubMed
Search for more literature for 3.2.1.49

Inhibitors

Inhibitors Comment Organism Structure
Ag+ isoenzyme II Todarodes pacificus
Cu2+ isoenzyme II Todarodes pacificus
D-galactose isoenzyme I Todarodes pacificus
Hg2+ isoenzyme II Todarodes pacificus
N-acetylgalactosamine
-
 Todarodes pacificus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.55
-
 4-nitrophenyl alpha-N-acetylgalactosaminide isoenzyme II Todarodes pacificus
3.33
-
 4-nitrophenyl alpha-N-acetylgalactosaminide isoenzyme I Todarodes pacificus

Organism

Organism UniProt Comment Textmining
Todarodes pacificus
-
 squid
-

Purification (Commentary)

Purification (Comment) Organism
-
 Todarodes pacificus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
 Todarodes pacificus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl alpha-N-acetylgalactosaminide + H2O
-
 Todarodes pacificus 4-nitrophenol + alpha-N-acetylgalactosamine
-
 ?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
 isoenzyme I stable for 30 min, isoenzyme II loses activity Todarodes pacificus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7 3.5 isoenzyme I, p-nitrophenyl-alpha-N-acetylgalactosaminide Todarodes pacificus
4.2
-
 isoenzyme II, p-nitrophenyl-alpha-N-acetylgalactosaminide Todarodes pacificus

pH Stability

pH Stability pH Stability Maximum Comment Organism
4.5 5.5 isoenzyme I Todarodes pacificus
4.5 6.5 isoenzyme II Todarodes pacificus