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Literature summary for 5.3.1.12 extracted from

  • Ashwell, G.; Wahba, A.J.; Hickman, J.
    Uronic acid metabolism in bacteria: I. Purification and properties of uronic acid isomerase in Echerichia coli (1960), J. Biol. Chem., 235, 1559-1565.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
1,10-phenanthroline
-
Escherichia coli
2,2'-dipyridyl
-
Escherichia coli
2-mercaptoethanol
-
Escherichia coli
Cu2+
-
Escherichia coli
cysteine
-
Escherichia coli
glutathione weak Escherichia coli
NaCN
-
Escherichia coli
NEM
-
Escherichia coli
PCMB
-
Escherichia coli
Zn2+
-
Escherichia coli

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.75
-
D-tagaturonate
-
Escherichia coli
1.65
-
D-galacturonate
-
Escherichia coli
3.7
-
D-glucuronate
-
Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
D-Fructuronate Escherichia coli first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism ?
-
?
D-Galacturonate Escherichia coli first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism ?
-
?
D-Glucuronate Escherichia coli first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism ?
-
?
D-Tagaturonate Escherichia coli first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism ?
-
?

Organism

Organism UniProt Comment Textmining
Escherichia coli
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Escherichia coli

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Escherichia coli

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-Fructuronate first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism Escherichia coli ?
-
?
D-Galacturonate r Escherichia coli D-Tagaturonate
-
?
D-Galacturonate first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism Escherichia coli ?
-
?
D-Glucuronate
-
Escherichia coli D-Fructuronate
-
?
D-Glucuronate first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism Escherichia coli ?
-
?
D-Tagaturonate first step in the pathway of glucuronic acid metabolism and galacturonic acid metabolism Escherichia coli ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8 8.5
-
Escherichia coli

pH Range

pH Minimum pH Maximum Comment Organism
6 9 pH 6.0: about 30% of maximal activity, pH 9.0: about 40% of maximal activity with D-galacturonate Escherichia coli
7.5 9 pH 7.5: about 55% of maximal activity, pH 9.0: about 75% of maximal activity with glucuronate Escherichia coli