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Literature summary for 4.1.2.47 extracted from

  • Asano, Y.; Dadashipour, M.; Yamazaki, M.; Doi, N.; Komeda, H.
    Functional expression of a plant hydroxynitrile lyase in Escherichia coli by directed evolution: creation and characterization of highly in vivo soluble mutants (2011), Protein Eng. Des. Sel., 24, 607-616.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli JM109 and BL21 (DE3) cells Manihot esculenta

Protein Variants

Protein Variants Comment Organism
H103C the mutant displays 9.3fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103I the mutant displays 8.1fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103K inactive Manihot esculenta
H103L the mutant displays 11.1fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103M the mutant displays 9.07fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103P inactive Manihot esculenta
H103Q the mutant displays 4.06fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103R inactive Manihot esculenta
H103S the mutant displays 2.9fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103T the mutant displays 3.4fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
H103W inactive Manihot esculenta
H103Y inactive with (S)-mandelonitrile as substrate Manihot esculenta
K176P the mutant displays 2.02fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
K176P/K199P/K224P the mutant displays 6.97fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
K176P/K224P the mutant displays 5.05fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
K199P the mutant displays 1.38fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
K199P/K224P the mutant displays 4.25fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta
K224P the mutant displays 2.53fold increase in total specific activity in the cell-free extract compared with the wild type Manihot esculenta

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.86
-
(S)-mandelonitrile mutant enzyme H103M, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
2 3 benzaldehyde wild type enzyme, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
2.5 5 (S)-mandelonitrile mutant enzyme H103L, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
5.17
-
(S)-mandelonitrile wild type enzyme, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
5.54
-
(S)-mandelonitrile mutant enzyme K176P/K199P/K224P, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
6.98
-
(S)-mandelonitrile mutant enzyme K176P, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
12.3
-
benzaldehyde mutant enzyme H103Y, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
13.4
-
benzaldehyde mutant enzyme H103L, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
21.6
-
benzaldehyde mutant enzyme K176P, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
27
-
benzaldehyde mutant enzyme K176P/K199P/K224P, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
27.9
-
benzaldehyde mutant enzyme H103M, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta

Organism

Organism UniProt Comment Textmining
Manihot esculenta P52705
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(S)-mandelonitrile
-
Manihot esculenta cyanide + benzaldehyde
-
r
cyanide + benzaldehyde
-
Manihot esculenta (S)-mandelonitrile
-
r

Synonyms

Synonyms Comment Organism
HNL
-
Manihot esculenta
S-hydroxynitrile lyase
-
Manihot esculenta

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
21.5
-
(S)-mandelonitrile mutant enzyme H103L, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
23.9
-
(S)-mandelonitrile mutant enzyme H103M, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
34.5
-
(S)-mandelonitrile wild type enzyme, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
39.7
-
(S)-mandelonitrile mutant enzyme K176P/K199P/K224P, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
41.8
-
(S)-mandelonitrile mutant enzyme K176P, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
47.4
-
benzaldehyde mutant enzyme H103Y, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
83.2
-
benzaldehyde mutant enzyme K176P, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
90.4
-
benzaldehyde mutant enzyme H103L, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
93.5
-
benzaldehyde mutant enzyme K176P/K199P/K224P, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
96.1
-
benzaldehyde mutant enzyme H103M, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
96.6
-
benzaldehyde wild type enzyme, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta

Cofactor

Cofactor Comment Organism Structure
FAD
-
Manihot esculenta

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
3.44
-
benzaldehyde mutant enzyme H103M, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
3.46
-
benzaldehyde mutant enzyme K176P/K199P/K224P, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
3.85
-
benzaldehyde mutant enzyme H103Y, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
3.85
-
benzaldehyde mutant enzyme K176P, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
4.2
-
benzaldehyde wild type enzyme, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
6
-
(S)-mandelonitrile mutant enzyme K176P, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
6.67
-
(S)-mandelonitrile wild type enzyme, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
6.75
-
benzaldehyde mutant enzyme H103L, in 100 mM citrate buffer pH 5.0, temperature not specified in the publication Manihot esculenta
7.2
-
(S)-mandelonitrile mutant enzyme K176P/K199P/K224P, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
8.43
-
(S)-mandelonitrile mutant enzyme H103L, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta
12.8
-
(S)-mandelonitrile mutant enzyme H103M, in 100 mM citrate buffer pH above 6.0, temperature not specified in the publication Manihot esculenta