Collated Gene Ontology terms

Biological process: electron transfer activity(2007, 2014, 2025) metal ion binding(2025) heme binding(2025) quinol-cytochrome-c reductase activity(2004, 2021, 2025) oxidoreductase activity(2025)

Molecular function: mitochondrial electron transport, ubiquinol to cytochrome c2013, 2017, 2021, 2024, 2025 respiratory electron transport chain2025 proton transmembrane transport2025 cellular respiration2025 response to glucagon2008, 2025 proton motive force-driven mitochondrial ATP synthesis2012, 2025 determination of adult lifespan2012, 2025

Cellular component: respiratory chain complex III2021, 2024, 2025 membrane2014, 2025 mitochondrial inner membrane2005, 2007, 2013, 2024, 2025 mitochondrion2003, 2007, 2009, 2014, 2017, 2018, 2021, 2024, 2025 vacuole2021 cytosol2011, 2019 plastid2019 plasma membrane2014 plant-type vacuole2021 nucleus2014
mitochondrial intermembrane space2011 cytoplasm2025

Phylogenetic distribution

Chordates: 18/21 
Echinoderms: 0/0 
Hemichordates: 1/1 
Annelids: 1/1 
Molluscs: 0/0 
Bryozoans: 0/0 
Platyhelminthes: 0/0 
Rotifers: 0/0 
Nematodes: 3/3 
Arthropods: 5/5 
Tardigrades: 0/0 
Placozoa: 1/1 
Cnidaria: 1/1 
Porifera: 0/0 
Choanoflagellates+: 15/1 
Dikarya: 0/14 
Fungi (other): 0/1 
Protozoa: 2/3 
Excavates: 2/4 
Harosa: 4/4 
Hacrobia: 0/0 
Plants: 38/39 
Archea: 0/8 
Bacteria: 5/35 

Find a cluster

Protein ID:
UniProt ID, accession, gene name or model org. database name
Cluster ID:
e.g. "UKP00123" or "123"

Download

Protein sequences (FASTA format)

Knownness history

2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 0 2 4 6 8 10 Knownness

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Proteins

UniProt ID
Organism DB»		 Standard knownness clustom knownness Gene name Description Species  [Show all] GO terms Seq. links Protein domain links
CY1_DICDI
dictyBase»
0.5
cyc1 Cytochrome c1, heme protein, mitochondrial (Cytochrome c-1) (EC 7.1.1.8) (Complex III
subunit 4) (Complex III subunit IV) (Cytochrome b-c1 complex subunit 4)		 Dictyostelium discoideum
TI:44689 None
 
CY1_HUMAN
Ensembl»
1.7
CYC1 Cytochrome c1, heme protein, mitochondrial (EC 7.1.1.8) (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit) (Cytochrome c-1)		 Homo sapiens
TI:9606 None
 
CY1_MOUSE
Ensembl»
2.2
Cyc1 Cytochrome c1, heme protein, mitochondrial (EC 7.1.1.8) (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit) (Cytochrome c-1)		 Mus musculus
TI:10090 None
 
CY1_SCHPO
PomBase»
2.2
cyt1 Cytochrome c1, heme protein, mitochondrial (EC 7.1.1.8) (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit) (Cytochrome c-1)		 Schizosaccharomyces pombe
TI:4896 None
 
CY1_YEAST
SGD»
3.7
CYT1 Cytochrome c1, heme protein, mitochondrial (EC 7.1.1.8) (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome c oxidoreductase cytochrome c1 subunit) (Cytochrome c-1)		 Saccharomyces cerevisiae
TI:4932 None
 
CYC1A_ARATH
TAIR»
0.5
CYC1-1 Cytochrome c1 1, heme protein, mitochondrial (Complex III subunit 4-1) (Complex III subunit IV-1) (Cytochrome
b-c1 complex subunit 4-1) (Ubiquinol-cytochrome c reductase complex cytochrome c1 subunit 1) (Cytochrome c-1 1)		 Arabidopsis thaliana
TI:3702 None
 
CYC1B_ARATH
TAIR»
0.5
CYC1-2 Cytochrome c1 2, heme protein, mitochondrial (Complex III subunit 4-2) (Complex III subunit IV-2) (Cytochrome
b-c1 complex subunit 4-2) (Ubiquinol-cytochrome c reductase complex cytochrome c1 subunit 2) (Cytochrome c-1 2)		 Arabidopsis thaliana
TI:3702 None
 
D3ZFQ8_RAT
RGD»
1.3
Cyc1 Cytochrome c-1 Rattus norvegicus
TI:10116 None
   
Q18853_CAEEL
WormBase»
2.1
cyc-1 Cytochrome c domain-containing protein Caenorhabditis elegans
TI:6239 None
 
Q3B7R0_DANRE
ZFIN»
0.5
cyc1 Cytochrome c1, heme protein, mitochondrial (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit)		 Danio rerio
TI:7955 None
 
Q9VAM8_DROME
FlyBase»
2.1
Cyt-c1L Cytochrome c1, heme protein, mitochondrial (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit)		 Drosophila melanogaster
TI:7227 None
 
Q9VRL0_DROME
FlyBase»
3.1
Cyt-c1 Cytochrome c1, heme protein, mitochondrial (Complex III subunit 4) (Complex III subunit
IV) (Cytochrome b-c1 complex subunit 4) (Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit)		 Drosophila melanogaster
TI:7227 None