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Literature summary for 1.1.1.162 extracted from

  • Uehara, K.; Tanimoto, T.; Sato, H.
    Studies on D-tetrose metabolism. IV. Purification and some properties of D-erythrulose reductase from beef liver (1974), J. Biochem., 75, 333-345.
    View publication on PubMed

General Stability

General Stability Organism
NADP+ protects against heat inactivation or Rose bengal-sensitized photoinactivation and cold inactivation Bos taurus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0068
-
NADPH
-
Bos taurus
0.22
-
NADH
-
Bos taurus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22000
-
4 * 22000, SDS-PAGE Bos taurus
90000
-
sedimentation equilibrium analysis, gel filtration, sucrose density gradient centrifugation Bos taurus

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Bos taurus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Bos taurus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
123
-
-
Bos taurus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-erythrulose + NAD(P)H highly specific for D-erythrulose Bos taurus D-threitol + NAD(P)+
-
ir
D-erythrulose + NAD(P)H reversibility could not be demonstrated Bos taurus D-threitol + NAD(P)+
-
ir
D-erythrulose + NADH + H+
-
Bos taurus D-threitol + NAD+
-
r

Subunits

Subunits Comment Organism
tetramer 4 * 22000, SDS-PAGE Bos taurus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
additional information
-
cold inactivation Bos taurus
-
-
23.5 h, 90% loss of activity, regains about 55-65% of its original activity after 60 min Bos taurus
21
-
23.5 h, 20-25% loss of activity Bos taurus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.85
-
D-erythrulose + NADH Bos taurus
6.25
-
D-erythrulose + NADH Bos taurus

Cofactor

Cofactor Comment Organism Structure
NADH utilized more slowly than NADPH Bos taurus
NADPH
-
Bos taurus