Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 7.1.1.8 extracted from

  • Hunte, C.; Solmaz, S.; Lange, C.
    Electron transfer between yeast cytochrome bc1 complex and cytochrome c: a structural analysis (2002), Biochim. Biophys. Acta, 1555, 21-28.
    View publication on PubMed
Search for more literature for 7.1.1.8

Crystallization (Commentary)

Crystallization (Comment) Organism
crystallization of the enzyme cytochrome bc1 complex with mitochondrial cytochrome c and the antibody fragment FV18E11, protein solution with 120 mM ionic strength is rapidly mixed with precipitation solution containing 12% PEG 4000, 20 mM Tris-HCl, pH 7.5, hanging drop vapour diffusion method, 3 weeks at 4°C, X-ray diffraction structure determination and analysis, modeling Saccharomyces cerevisiae

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
 additional information kinetics Saccharomyces cerevisiae

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane integral Saccharomyces cerevisiae 16020
-
mitochondrion
-
 Saccharomyces cerevisiae 5739
-

Metals/Ions

Metals/Ions Comment Organism Structure
Iron enzyme complex contains a [2Fe-2S] cluster Saccharomyces cerevisiae

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ubiquinol-2 + 2 ferricytochrome c Saccharomyces cerevisiae electron transfer between yeast cytochrome bc1 complex and cytochrome c is coupled to proton transport across the inner mitochondrial membrane delivering a membrane potential, enzyme complex is important in cell respiration and photosynthesis ubiquinone-2 + 2 ferrocytochrome c + 2 H+
-
 ?

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Reaction

Reaction Comment Organism Reaction ID
quinol + 2 ferricytochrome c = quinone + 2 ferrocytochrome c + 2 H+[side 2] binding structure and mode of cytochrome c1 within the enzyme complex and cytochrome c during the catalytic reaction, direct heme-to-heme electron transfer from the enzyme complex cytochrome c1 to cytochrome c, half-of-the sites mechanism Saccharomyces cerevisiae
a

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ubiquinol-2 + 2 ferricytochrome c electron transfer between yeast cytochrome bc1 complex and cytochrome c is coupled to proton transport across the inner mitochondrial membrane delivering a membrane potential, enzyme complex is important in cell respiration and photosynthesis Saccharomyces cerevisiae ubiquinone-2 + 2 ferrocytochrome c + 2 H+
-
 ?
ubiquinol-2 + 2 ferricytochrome c activity is highest near physiological ionic strength and decreases at higher concentrations Saccharomyces cerevisiae ubiquinone-2 + 2 ferrocytochrome c + 2 H+
-
 ?

Subunits

Subunits Comment Organism
dimer complex composition, binding structure of cytochromes, crystal structure, overview Saccharomyces cerevisiae

Synonyms

Synonyms Comment Organism
cytochrome bc1 complex
-
 Saccharomyces cerevisiae
QCR
-
 Saccharomyces cerevisiae

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
 assay at Saccharomyces cerevisiae

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
additional information
-
 additional information rate of direct heme-to-heme electron transfer from the enzyme complex cytochrome c1 to cytochrome c Saccharomyces cerevisiae

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.4
-
 assay at Saccharomyces cerevisiae