Reactome | Electron transfer from ubiquinol to cytochrome c of complex III

Schema > Reaction > Entries

Electron transfer from ubiquinol to cytochrome c of complex III Show undefined attributes

catalystActivity	[CatalystActivity:10838893] quinol-cytochrome-c reductase activity of Cytochrome c reductase [mitochondrial inner membrane]
category	transition
compartment	[Compartment:70616] mitochondrial inner membrane
created	[InstanceEdit:10829237] Weiser, Joel, 2026-03-16
dbId	10838895
displayName	Electron transfer from ubiquinol to cytochrome c of complex III
eventOf	[Pathway:R-DME-611105] Respiratory electron transport - Drosophila melanogaster
evidenceType	[EvidenceType:9984902] inferred by electronic annotation
followingEvent	[Reaction:R-DME-163214] Electron transfer from reduced cytochrome c to molecular oxygen - Drosophila melanogaster [Reaction:R-DME-163217] Complex I oxidises NADH to NAD+, reduces CoQ to CoQH2 - Drosophila melanogaster [Reaction:R-DME-169270] ETFDH oxidises ETF (reduced) to ETF, reduces CoQ to CoQH2 - Drosophila melanogaster [Reaction:R-DME-164834] Enzyme-bound ATP is released - Drosophila melanogaster
goBiologicalProcess	[GO_BiologicalProcess:15812] mitochondrial electron transport, ubiquinol to cytochrome c
inferredFrom	[Reaction:R-HSA-164651] Electron transfer from ubiquinol to cytochrome c of complex III - Homo sapiens
input	[SimpleEntity:R-ALL-73663] CoQ [mitochondrial inner membrane] 2 × [SimpleEntity:R-ALL-2162198] CoQH2 [mitochondrial inner membrane] 2 × [SimpleEntity:R-ALL-113529] H+ [mitochondrial matrix] 2 × [DefinedSet:R-DME-352607-3] Homologues of Cytochrome c (oxidised) [mitochondrial inner membrane]
isInDisease	false
isInferred	true
maxDepth	1
name	Electron transfer from ubiquinol to cytochrome c of complex III
output	2 × [SimpleEntity:R-ALL-73663] CoQ [mitochondrial inner membrane] [SimpleEntity:R-ALL-2162198] CoQH2 [mitochondrial inner membrane] 4 × [SimpleEntity:R-ALL-163953] H+ [mitochondrial intermembrane space] 2 × [DefinedSet:R-DME-352609-3] Homologues of Cytochrome c (reduced) [mitochondrial inner membrane]
precedingEvent	[Reaction:R-DME-163214] Electron transfer from reduced cytochrome c to molecular oxygen - Drosophila melanogaster [Reaction:R-DME-163217] Complex I oxidises NADH to NAD+, reduces CoQ to CoQH2 - Drosophila melanogaster [Reaction:R-DME-169270] ETFDH oxidises ETF (reduced) to ETF, reduces CoQ to CoQH2 - Drosophila melanogaster
releaseDate	2026-03-25
schemaClass	Reaction
species	[Species:56210] Drosophila melanogaster
stId	R-DME-164651
summation	[Summation:9984901] This event has been computationally inferred from an event that has been demonstrated in another species. The inference is based on the homology mapping from PANTHER. Briefly, reactions for which all involved PhysicalEntities (in input, output and catalyst) have a mapped orthologue/paralogue (for complexes at least 75% of components must have a mapping) are inferred to the other species. High level events are also inferred for these events to allow for easier navigation. More details and caveats of the event inference in Reactome. For details on PANTHER see also: http://www.pantherdb.org/about.jsp

Referrals

(hasEvent)	[Pathway:R-DME-611105] Respiratory electron transport
(precedingEvent)	[Reaction:R-DME-164834] Enzyme-bound ATP is released [Reaction:R-DME-163214] Electron transfer from reduced cytochrome c to molecular oxygen [Reaction:R-DME-163217] Complex I oxidises NADH to NAD+, reduces CoQ to CoQH2 [Reaction:R-DME-169270] ETFDH oxidises ETF (reduced) to ETF, reduces CoQ to CoQH2
(inferredTo)	[Reaction:R-HSA-164651] Electron transfer from ubiquinol to cytochrome c of complex III