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Literature summary extracted from

  • Kallwass, H.K.W.
    Potential of R-2-hydroxyisocaproate dehydrogenase from Lactobacillus casei for stereospecific reductions (1992), Enzyme Microb. Technol., 14, 28-35.
No PubMed abstract available

Application

EC Number Application Comment Organism
1.1.1.345 synthesis the enzyme can be utilized for preparation of enantiomerically pure (R)-2-hydroxy-4-methylpentanoate in 88% yield, using formate dehydrogenase recycling of the NADH coenzyme Lacticaseibacillus casei

Cloned(Commentary)

EC Number Cloned (Comment) Organism
1.1.1.345 overexpression in Escherichia coli Lacticaseibacillus casei

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.1.1.345 0.12
-
2-oxopentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 0.12
-
2-oxooctanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 0.13
-
2-Oxohexanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 0.2
-
phenylpyruvate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 0.4
-
4-methyl-2-oxopentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 0.6
-
3-(4-hydroxyphenyl)-2-oxopropanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 1.6
-
2-Hydroxyoctanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 2.3
-
(R)-2-hydroxy-4-methylpentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 2.7
-
2-hydroxyhexanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 3.3
-
2-hydroxypentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei

Organism

EC Number Organism UniProt Comment Textmining
1.1.1.345 Lacticaseibacillus casei
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.1.1.345 (R)-2-hydroxy-4-methylpentanoate + NAD+ i.e. (R)-2-hydroxyisocaproate Lacticaseibacillus casei 4-methyl-2-oxopentanoate + NADH + H+ i.e. 2-oxoisocaproate r
1.1.1.345 2-hydroxyhexanoate + NAD+
-
Lacticaseibacillus casei 2-oxohexanoate + NADH + H+
-
r
1.1.1.345 2-hydroxyoctanoate + NAD+
-
Lacticaseibacillus casei 2-oxooctanoate + NADH + H+
-
r
1.1.1.345 2-hydroxypentanoate + NAD+
-
Lacticaseibacillus casei 2-oxopentanoate + NADH + H+
-
r
1.1.1.345 2-oxohexanoate + NADH + H+ i.e. 2-oxovalerate Lacticaseibacillus casei 2-hydroxyhexanoate + NAD+
-
r
1.1.1.345 2-oxooctanoate + NADH + H+
-
Lacticaseibacillus casei 2-hydroxyoctanoate + NAD+
-
r
1.1.1.345 2-oxopentanoate + NADH + H+ i.e. 2-oxocaproate Lacticaseibacillus casei 2-hydroxypentanoate + NAD+
-
r
1.1.1.345 3-(4-hydroxyphenyl)-2-oxopropanoate + NADH + H+
-
Lacticaseibacillus casei 2-hydroxy-3-(4-hydroxyphenyl)propanoate + NAD+
-
?
1.1.1.345 4-methyl-2-oxopentanoate + NADH + H+ i.e. 2-oxoisocaproate Lacticaseibacillus casei (R)-2-hydroxy-4-methylpentanoate + NAD+ i.e. (R)-2-hydroxyisocaproate r
1.1.1.345 phenylpyruvate + NADH + H+
-
Lacticaseibacillus casei phenyllactate + NAD+
-
?

Synonyms

EC Number Synonyms Comment Organism
1.1.1.345 R-HicDH
-
Lacticaseibacillus casei

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1.1.1.345 15
-
2-Hydroxyoctanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 24
-
2-hydroxypentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 26
-
2-hydroxyhexanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 43
-
(R)-2-hydroxy-4-methylpentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 84
-
4-methyl-2-oxopentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 139
-
2-Oxohexanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 197
-
2-oxopentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 788
-
3-(4-hydroxyphenyl)-2-oxopropanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 968
-
phenylpyruvate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 1200
-
2-oxooctanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.1.1.345 7
-
assay at Lacticaseibacillus casei

Cofactor

EC Number Cofactor Comment Organism Structure
1.1.1.345 NADH
-
Lacticaseibacillus casei

kcat/KM [mM/s]

EC Number kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
1.1.1.345 7.2
-
2-hydroxypentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 9.7
-
2-hydroxyhexanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 18
-
(R)-2-hydroxy-4-methylpentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 25
-
2-Hydroxyoctanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 139
-
2-oxooctanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 210
-
4-methyl-2-oxopentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 1100
-
2-Oxohexanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 1300
-
3-(4-hydroxyphenyl)-2-oxopropanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 1600
-
2-oxopentanoate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei
1.1.1.345 4800
-
phenylpyruvate pH 7.0, temperature not specified in the publication Lacticaseibacillus casei