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Literature summary extracted from

  • Qian, S.; Yu, H.; Zhang, C.; Lu, M.; Wang, H.; Jin, F.
    Purification and characterization of dioscin-alpha-L-rhamnosidase from pig liver (2005), Chem. Pharm. Bull., 53, 911-914.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.190 Cu2+ 10 mM, 94% inhibition Sus scrofa
3.2.1.190 Fe3+ 10 mM, 88% inhibition Sus scrofa
3.2.1.190 Mg2+ inhibits at 10-100 mM, slightly activates at 200 mM Sus scrofa

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.2.1.190 Ca2+ 10-200 mM, 1.13-1.18fold activation Sus scrofa
3.2.1.190 Mg2+ inhibits at 10-100 mM, slightly activates (109% of the control activity) at 200 mM Sus scrofa
3.2.1.190 Zn2+ 10-200 mM, 1.08-1.1fold activation Sus scrofa

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.190 47000
-
x * 47000, SDS-PAGE Sus scrofa

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.190 3-O-[alpha-L-Rha-(1->4)-[alpha-L-Rha-(1->2)]-beta-D-Glc]diosgenin + 2 H2O Sus scrofa the enzyme is involved in hydrolysis of the steroid saponin dioscin 2 L-rhamnopyranose + diosgenin 3-O-beta-D-glucopyranoside
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.190 Sus scrofa
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.190
-
Sus scrofa

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.190 liver
-
Sus scrofa
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.190 88
-
pH 7.2, 37°C Sus scrofa

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.190 3-O-[alpha-L-Rha-(1->4)-[alpha-L-Rha-(1->2)]-beta-D-Glc]diosgenin + 2 H2O the enzyme is involved in hydrolysis of the steroid saponin dioscin Sus scrofa 2 L-rhamnopyranose + diosgenin 3-O-beta-D-glucopyranoside
-
?
3.2.1.190 3-O-[alpha-L-Rha-(1->4)-[alpha-L-Rha-(1->2)]-beta-D-Glc]diosgenin + 2 H2O
-
Sus scrofa 2 L-rhamnopyranose + diosgenin-3-O-beta-D-glucopyranoside
-
?
3.2.1.190 additional information no hydrolysis of ginsenoside Re or rutin Sus scrofa ?
-
?

Subunits

EC Number Subunits Comment Organism
3.2.1.190 ? x * 47000, SDS-PAGE Sus scrofa

Synonyms

EC Number Synonyms Comment Organism
3.2.1.190 dioscin alpha-L-rhamnosidase
-
Sus scrofa

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.190 42
-
-
Sus scrofa

Temperature Range [°C]

EC Number Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
3.2.1.190 32 57 32°C: about 85% of maximal activity, 57°C: about 35% of maximal activity Sus scrofa

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.190 32 52 stable Sus scrofa

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.190 7
-
-
Sus scrofa

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.190 4 9 pH 4.0: about 50% of maximal activity, pH 9.0: about 60% of maximal activity Sus scrofa