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Literature summary for 1.3.5.1 extracted from

  • Kawahara, K.; Mogi, T.; Tanaka, T.Q.; Hata, M.; Miyoshi, H.; Kita, K.
    Mitochondrial dehydrogenases in the aerobic respiratory chain of the rodent malaria parasite Plasmodium yoelii yoelii (2009), J. Biochem., 145, 229-237.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
5-Hydroxy-2-methyl-1,4-naphthoquinone inhibition is only 50% even at 0.1 mM Plasmodium yoelii yoelii
atpenin A5
-
Plasmodium yoelii yoelii
carboxin
-
Plasmodium yoelii yoelii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.00017
-
ubiquinone-2 differences in Km value (9fold) and Vmax/Km ratio (19fold) between Q1 and Q2 indicate that the 6-polyprenyl tail of the ubiquinone ring contributes to the binding affinity and that Q2 is better substrate than Q1 Plasmodium yoelii yoelii
0.0016
-
ubiquinone-1
-
Plasmodium yoelii yoelii
0.049
-
succinate
-
Plasmodium yoelii yoelii

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrion enzyme isolated from mitochondria Plasmodium yoelii yoelii 5739
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
30000
-
sum of molecular weights of membrane anchor subunits is about 30 kDa Plasmodium yoelii yoelii
35000
-
iron-sulphur subunit Plasmodium yoelii yoelii
70000
-
flavoprotein subunit, identified by Western blot analysis Plasmodium yoelii yoelii
135000
-
high resolution clear-native electrophoresis Plasmodium yoelii yoelii

Organism

Organism UniProt Comment Textmining
Plasmodium yoelii yoelii
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
when comparing with rat liver mitochondria, succinate-quinone reductase activity of Plasmodium yoelii yoelii, is 1.4% of rat liver succinate-quinone reductase Plasmodium yoelii yoelii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
succinate + ubiquinone-1 succinate:quinone reductase activity is determined as quinone-mediated succinate:2,4-dichlorophenolindophenol (DCIP) reductase Plasmodium yoelii yoelii fumarate + ubiquinol
-
r
succinate + ubiquinone-2 succinate:quinone reductase activity is determined as quinone-mediated succinate:2,4-dichlorophenolindophenol (DCIP) reductase Plasmodium yoelii yoelii fumarate + ubiquinol
-
r

Subunits

Subunits Comment Organism
tetramer determined by high resolution clear-native electrophoresis and Western blot analysis. Enzyme consists of four subunits: a flavoprotein subunit (Fp, SDH1) and an iron-sulphur subunit (Ip, SDH2) form a soluble heterodimer, which binds to a membrane anchor b-type cytochrome (SDH3)/CybS (SDH4) heterodimer Plasmodium yoelii yoelii

Synonyms

Synonyms Comment Organism
complex II
-
Plasmodium yoelii yoelii
SQR
-
Plasmodium yoelii yoelii
succinate-quinone reductase
-
Plasmodium yoelii yoelii
succinate:ubiquinone reductase
-
Plasmodium yoelii yoelii

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Plasmodium yoelii yoelii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
assay at Plasmodium yoelii yoelii

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.0036
-
-
Plasmodium yoelii yoelii carboxin
0.0046
-
-
Plasmodium yoelii yoelii atpenin A5