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Literature summary for 4.2.1.84 extracted from

  • Kaakeh, M.R.; Legras, J.L.; Duran, R.; Chion, Ch.K.N.C.K.; Arnaud, A.; Galzy, P.
    Purification and properties of the nitrile hydratase of a new strain of Rhodococcus sp. (1991), Zentralbl. Mikrobiol., 146, 89-98.
No PubMed abstract available

Crystallization (Commentary)

Crystallization (Comment) Organism
-
Rhodococcus sp.

Inhibitors

Inhibitors Comment Organism Structure
5-aminotetrazole monohydrate
-
Rhodococcus sp.
Ca2+
-
Rhodococcus sp.
Cu2+
-
Rhodococcus sp.
Hg2+
-
Rhodococcus sp.
iodoacetic acid
-
Rhodococcus sp.
N-bromosuccinimide
-
Rhodococcus sp.

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
10
-
Isobutyronitrile pH 7, 25ºC Rhodococcus sp.
12.5
-
acetonitrile pH 7, 25ºC Rhodococcus sp.
14.3
-
Propionitrile pH 7, 25ºC Rhodococcus sp.
16.6
-
acrylonitrile pH 7, 25ºC Rhodococcus sp.
33.3
-
Benzonitrile pH 7, 25ºC Rhodococcus sp.
57
-
pivalonitrile pH 7, 25ºC Rhodococcus sp.

Localization

Localization Comment Organism GeneOntology No. Textmining
cytoplasm
-
Rhodococcus sp. 5737
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
26000
-
x * 26000, alpha + x * 32000, beta, SDS-PAGE, strain 7 Rhodococcus sp.
32000
-
x * 26000, alpha + x * 32000, beta, SDS-PAGE, strain 7 Rhodococcus sp.
278000
-
gel filtration Rhodococcus sp.

Organism

Organism UniProt Comment Textmining
Rhodococcus sp.
-
-
-
Rhodococcus sp. 7
-
-
-

Purification (Commentary)

Purification (Comment) Organism
chromatography on Sepharose Q, phenyl-Sepharose CL-4B and Sephadex G-200, strain 7 Rhodococcus sp.

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Rhodococcus sp.
3.8 4.6 with 0.5% ammonium sulfate or acetonitrile in the incubation medium Rhodococcus sp.
4.9
-
with 0.5% acetonitrile and 0.5% yeast extract Rhodococcus sp.
485
-
purified enzyme Rhodococcus sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetonitrile + H2O 79% of the activity with acrylonitrile Rhodococcus sp. acetamide
-
?
acetonitrile + H2O 79% of the activity with acrylonitrile Rhodococcus sp. 7 acetamide
-
?
acrylonitrile + H2O
-
Rhodococcus sp. 2-propenoic acid amide i.e. acrylic acid amide ?
acrylonitrile + H2O
-
Rhodococcus sp. 7 2-propenoic acid amide i.e. acrylic acid amide ?
benzonitrile + H2O 19.4% of the activity with acrylonitrile Rhodococcus sp. benzoic acid amide
-
?
isobutyronitrile + H2O 62.5% of the activity with acrylonitrile Rhodococcus sp. isobutyric acid amide
-
?
isobutyronitrile + H2O 62.5% of the activity with acrylonitrile Rhodococcus sp. 7 isobutyric acid amide
-
?
pivalonitrile + H2O 62% of the activity with acrylonitrile Rhodococcus sp. 2,2-dimethylpropionic acid amide
-
?
pivalonitrile + H2O 62% of the activity with acrylonitrile Rhodococcus sp. 7 2,2-dimethylpropionic acid amide
-
?
propionitrile + H2O 64% of the activity with acrylonitrile Rhodococcus sp. propionic acid amide
-
?
propionitrile + H2O 64% of the activity with acrylonitrile Rhodococcus sp. 7 propionic acid amide
-
?

Subunits

Subunits Comment Organism
? x * 26000, alpha + x * 32000, beta, SDS-PAGE, strain 7 Rhodococcus sp.

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
-
Rhodococcus sp.

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 60 about 60% of activity maximum at 30°C, about 50% of activity maximum at 60°C Rhodococcus sp.

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
60 min, about 80% loss of activity Rhodococcus sp.
55
-
20 min, about 90% loss of activity Rhodococcus sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Rhodococcus sp.

pH Range

pH Minimum pH Maximum Comment Organism
5 9 about 60% of activity maximum at pH 5, about 55% of activity maximum at pH 9 Rhodococcus sp.