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Literature summary extracted from

  • Kita, K.; Takamiya, S.; Furushima, R.; Ma, Y.C.; Suzuki, H.; Ozawa, T.; Oya, H.
    Electron-transfer complexes of Ascaris suum muscle mitochondria. III. Composition and fumarate reductase activity of complex II (1988), Biochim. Biophys. Acta, 935, 130-140.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.3.5.1 cytochrome b-558
-
 Ascaris suum

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.3.5.1 mitochondrion
-
 Rattus norvegicus 5739
-
1.3.5.1 mitochondrion inner membrane Bos taurus 5739
-
1.3.5.1 mitochondrion inner membrane Ascaris suum 5739
-

Organism

EC Number Organism UniProt Comment Textmining
1.3.5.1 Ascaris suum
-
 succinate dehydrogenase
-
1.3.5.1 Bos taurus
-
-
-
1.3.5.1 Rattus norvegicus
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.3.5.1 heart
-
 Bos taurus
-
1.3.5.1 liver
-
 Rattus norvegicus
-
1.3.5.1 muscle
-
 Ascaris suum
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.3.5.1 0.0547
-
 egg mitochondria Ascaris suum
1.3.5.1 0.135
-
 heart mitochondria Bos taurus
1.3.5.1 0.136
-
 muscle mitochondria Ascaris suum
1.3.5.1 0.154
-
 liver mitochondria Rattus norvegicus
1.3.5.1 2.04
-
 isolated complex II Ascaris suum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.3.5.1 succinate + ubiquinone
-
 Bos taurus fumarate + ubiquinol
-
 ?
1.3.5.1 succinate + ubiquinone
-
 Ascaris suum fumarate + ubiquinol
-
 ?

Subunits

EC Number Subunits Comment Organism
1.3.5.1 tetramer
-
 Bos taurus
1.3.5.1 tetramer
-
 Ascaris suum

pH Range

EC Number pH Minimum pH Maximum Comment Organism
1.3.5.1 6.5
-
 decrease of activity below Ascaris suum
1.3.5.1 8.5
-
 80% of maximal activity Ascaris suum

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
1.3.5.1 8.5
-
 fumarate reductase activity decreases to 80% Ascaris suum

Cofactor

EC Number Cofactor Comment Organism Structure
1.3.5.1 cytochrome b
-
 Bos taurus
1.3.5.1 cytochrome b cytochrome b-558, composed of two hydrophobic polypeptides with molecular masses of 17.2 and 12.5 kDa, which correspond to the two small subunits of complex II Ascaris suum