Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
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Drug
Enzyme
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Query: EC:3.6.3.14 (
ATP synthase
)
7,042
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Mitochondria are the powerhouses of eukaryotic cells. The activity of the respiratory chain complexes generates a proton gradient across the inner membrane, which is used by the F
1
F
O
-
ATP synthase
to produce ATP for cellular metabolism. In baker's yeast,
Saccharomyces cerevisiae
, the cytochrome
bc1
complex (complex III) and cytochrome
c
oxidase (complex IV) associate in respiratory chain supercomplexes. Iron-sulfur clusters (ISC) form reactive centers of respiratory chain complexes. The assembly of ISC occurs in the mitochondrial matrix and is essential for cell viability. The
cysteine desulfurase
Nfs1 provides sulfur for ISC assembly and forms with partner proteins the ISC-biogenesis desulfurase complex (ISD complex). Here, we report an unexpected interaction of the active ISD complex with the cytochrome
bc1
complex and cytochrome
c
oxidase. The individual deletion of complex III or complex IV blocks the association of the ISD complex with respiratory chain components. We conclude that the ISD complex binds selectively to respiratory chain supercomplexes. We propose that this molecular link contributes to coordination of iron-sulfur cluster formation with respiratory activity.
...
PMID:Respiratory chain supercomplexes associate with the cysteine desulfurase complex of the iron-sulfur cluster assembly machinery. 2938 96
