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Literature summary for 1.12.1.2 extracted from

  • Pfitzner, J.; Linke, H.A.B.; Schlegel, H.G.
    Properties of the NAD-specific hydrogenase from Hydrogenomonas H 16 (1970), Arch. Mikrobiol., 71, 67-78.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
mercaptoethanol
-
Hydrogenomonas sp.
Sulfide
-
Hydrogenomonas sp.

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.13
-
NAD+
-
Hydrogenomonas sp.
0.19
-
H2
-
Hydrogenomonas sp.

Localization

Localization Comment Organism GeneOntology No. Textmining
soluble
-
Hydrogenomonas sp.
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Iron Fe2+ stabilizes Hydrogenomonas sp.
Mg2+ stabilizes Hydrogenomonas sp.
Mn2+ stabilizes Hydrogenomonas sp.

Organism

Organism UniProt Comment Textmining
Hydrogenomonas sp.
-
-
-
Hydrogenomonas sp. H16
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Hydrogenomonas sp.

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
36.5
-
-
Hydrogenomonas sp.

Storage Stability

Storage Stability Organism
-16°C, 10 d, 30% loss of activity Hydrogenomonas sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
H2 + NAD+ electron acceptor FAD, only in presence of catalytic amounts of NAD+ Hydrogenomonas sp. H+ + NADH
-
?
H2 + NAD+ artificial electron acceptor methylene blue, only in presence of catalytic amounts of NAD+ Hydrogenomonas sp. H+ + NADH
-
?
H2 + NAD+ electron acceptor FMN, only in presence of catalytic amounts of NAD+ Hydrogenomonas sp. H+ + NADH
-
?
H2 + NAD+ electron acceptor FAD, only in presence of catalytic amounts of NAD+ Hydrogenomonas sp. H16 H+ + NADH
-
?
H2 + NAD+ artificial electron acceptor methylene blue, only in presence of catalytic amounts of NAD+ Hydrogenomonas sp. H16 H+ + NADH
-
?
H2 + NAD+ electron acceptor FMN, only in presence of catalytic amounts of NAD+ Hydrogenomonas sp. H16 H+ + NADH
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
36
-
-
Hydrogenomonas sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.9
-
potassium phosphate buffer Hydrogenomonas sp.
8.5
-
Tris-HCl buffer Hydrogenomonas sp.

pH Range

pH Minimum pH Maximum Comment Organism
6.9 9.1 Tris-HCl buffer and potassium phosphate buffer pH 6.9: 20% activity, Tris-HCl buffer pH 9.1: 40% activity, potassium phosphate buffer pH 9.1: 65% activity Hydrogenomonas sp.