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Literature summary for 1.2.7.12 extracted from

  • Karrasch, M.; Börner, G.; Enssle, M.; Thauer, R.K.
    The molybdoenzyme formylmethanofuran dehydrogenase from Methanosarcina barkeri contains a pterin cofactor (1990), Eur. J. Biochem., 194, 367-372.
    View publication on PubMed

General Stability

General Stability Organism
enzyme in crude enzyme extract is unstable to freezing Methanosarcina barkeri

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.02
-
N-formylmethanofuran molybdenum enzyme Methanosarcina barkeri
0.02
-
N-formylmethanofuran value below, methylviologen, molybdenum enzyme Methanosarcina barkeri

Metals/Ions

Metals/Ions Comment Organism Structure
Iron contains 28 mol of non-heme iron and acid labile sulfur per mol of 220000 MW enzyme Methanosarcina barkeri
Molybdenum enzyme exists as molybdenum iron-sulfur protein or as tungsten iron-sulfur protein Methanosarcina barkeri
Molybdenum contains 0.5-0.8 mol of molybdenum per mol of 220000 MW enzyme Methanosarcina barkeri

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
17000
-
x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri
29000
-
x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri
34000
-
x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri
37000
-
x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri
50000
-
x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri
65000
-
x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri
200000
-
and MW 400000, native PAGE Methanosarcina barkeri
400000
-
and MW 200000, native PAGE Methanosarcina barkeri
440000
-
gel filtration Methanosarcina barkeri

Organism

Organism UniProt Comment Textmining
Methanosarcina barkeri
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Methanosarcina barkeri

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
formylmethanofuran + oxidized methylviologen + H2O
-
Methanosarcina barkeri methanofuran + reduced methylviologen + CO2
-
?

Subunits

Subunits Comment Organism
? x * 65000 + x * 50000 + x * 37000 + x * 34000 + x * 29000 + x * 17000, SDS-PAGE Methanosarcina barkeri

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
70
-
-
Methanosarcina barkeri

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
640
-
formylmethanofuran
-
Methanosarcina barkeri

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Methanosarcina barkeri

Cofactor

Cofactor Comment Organism Structure
pterin contains 0.6-0.9 mol of pterin per mol of 22000 MW enzyme Methanosarcina barkeri