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Literature summary extracted from

  • Kemner, J.M.; Zeikus, J.G.
    Purification and characterization of membrane-bound hydrogenase from Methanosarcina barkeri MS (1994), Arch. Microbiol., 161, 47-54.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.12.7.2 CO both activities are inhibited Methanosarcina barkeri

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.12.7.2 5.6
-
H2
-
Methanosarcina barkeri

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.12.7.2 Fe 8 mol per mol enzyme Methanosarcina barkeri
1.12.7.2 Ni 0.5 mol per mol enzyme Methanosarcina barkeri

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.12.7.2 35000
-
alpha, beta, 1 * 57000 + 1 * 35000, SDS-PAGE Methanosarcina barkeri
1.12.7.2 57000
-
alpha, beta, 1 * 57000 + 1 * 35000, SDS-PAGE Methanosarcina barkeri
1.12.7.2 98000
-
gel filtration Methanosarcina barkeri

Organism

EC Number Organism UniProt Comment Textmining
1.12.7.2 Methanosarcina barkeri
-
-
-
1.12.7.2 Methanosarcina barkeri MS / DSM 800
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.12.7.2
-
Methanosarcina barkeri

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.12.7.2 0.69
-
hydrogen oxidation, methylene blue as electron acceptor Methanosarcina barkeri
1.12.7.2 7.8
-
hydrogen oxidation, phenosafranine as electron acceptor Methanosarcina barkeri
1.12.7.2 45
-
hydrogen production, methyl viologen as electron donor Methanosarcina barkeri
1.12.7.2 96
-
hydrogen oxidation, benzyl viologen as electron acceptor Methanosarcina barkeri
1.12.7.2 120
-
hydrogen oxidation, methyl viologen as electron acceptor Methanosarcina barkeri

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.12.7.2 H2 + electron acceptor methylene blue as electron acceptor Methanosarcina barkeri H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor cytochrome b as electron acceptor Methanosarcina barkeri H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor methyl viologen as electron acceptor Methanosarcina barkeri H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor phenosafranine as electron acceptor Methanosarcina barkeri H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor benzyl viologen as electron acceptor Methanosarcina barkeri H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor methylene blue as electron acceptor Methanosarcina barkeri MS / DSM 800 H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor cytochrome b as electron acceptor Methanosarcina barkeri MS / DSM 800 H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor methyl viologen as electron acceptor Methanosarcina barkeri MS / DSM 800 H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor phenosafranine as electron acceptor Methanosarcina barkeri MS / DSM 800 H+ + reduced electron acceptor
-
r
1.12.7.2 H2 + electron acceptor benzyl viologen as electron acceptor Methanosarcina barkeri MS / DSM 800 H+ + reduced electron acceptor
-
r

Subunits

EC Number Subunits Comment Organism
1.12.7.2 dimer alpha, beta, 1 * 57000 + 1 * 35000, SDS-PAGE Methanosarcina barkeri