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Literature summary for 1.1.1.12 extracted from

  • Fernandes, S.; Tuohy, M.G.; Murray, P.G.
    Cloning, heterologous expression, and characterization of the xylitol and L-arabitol dehydrogenase genes, Texdh and Telad, from the thermophilic fungus Talaromyces emersonii (2010), Biochem. Genet., 48, 480-495.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Rasamsonia emersonii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.06
-
NAD+ pH 9, 30°C Rasamsonia emersonii
13.4
-
L-arabinitol pH 9, 30°C Rasamsonia emersonii
23.3
-
xylitol pH 9, 30°C Rasamsonia emersonii
483.5
-
D-sorbitol pH 9, 30°C Rasamsonia emersonii

Metals/Ions

Metals/Ions Comment Organism Structure
Zn2+ structure analysis indicates that enzyme belongs to the family of Zn2+-containing, medium-chain alcohol dehydrogenases. Residues involved in Zn2+ binding are C55, H80, and E165. Thereis a second zinc-binding site C110, C113, C116, and C124 Rasamsonia emersonii

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
41000
-
x * 41000, calculated, x * 45000, SDS-PAGE Rasamsonia emersonii
45000
-
x * 41000, calculated, x * 45000, SDS-PAGE Rasamsonia emersonii

Organism

Organism UniProt Comment Textmining
Rasamsonia emersonii C5J3R8
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-sorbitol + NAD+
-
Rasamsonia emersonii D-fructose + NADH + H+
-
?
L-arabinitol + NAD+
-
Rasamsonia emersonii L-xylulose + NADH + H+
-
?
xylitol + NAD+
-
Rasamsonia emersonii D-xylulose + NADH + H+
-
?

Subunits

Subunits Comment Organism
? x * 41000, calculated, x * 45000, SDS-PAGE Rasamsonia emersonii

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 60
-
Rasamsonia emersonii

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.25
-
xylitol pH 9, 30°C Rasamsonia emersonii
3.7
-
D-sorbitol pH 9, 30°C Rasamsonia emersonii
4.7
-
NAD+ pH 9, 30°C Rasamsonia emersonii
5.3
-
L-arabinitol pH 9, 30°C Rasamsonia emersonii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9
-
-
Rasamsonia emersonii

pH Range

pH Minimum pH Maximum Comment Organism
7 11
-
Rasamsonia emersonii

Cofactor

Cofactor Comment Organism Structure
additional information no activity with NADP+ Rasamsonia emersonii
NAD+ specific for NAD+ Rasamsonia emersonii

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
0.008
-
D-sorbitol pH 9, 30°C Rasamsonia emersonii
0.14
-
xylitol pH 9, 30°C Rasamsonia emersonii
0.39
-
L-arabinitol pH 9, 30°C Rasamsonia emersonii
78.3
-
NAD+ pH 9, 30°C Rasamsonia emersonii