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Protein

Cytochrome c1, heme protein, mitochondrial

Gene

cyt1

Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Protein inferred from homologyi

Functioni

Heme-containing component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is part of the mitochondrial respiratory chain that generates an electrochemical potential coupled to ATP synthesis. The complex couples electron transfer from ubiquinol to cytochrome c (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei102Heme (covalent)PROSITE-ProRule annotation1
Binding sitei105Heme (covalent)PROSITE-ProRule annotation1
Metal bindingi106Iron (heme axial ligand)PROSITE-ProRule annotation1
Metal bindingi225Iron (heme axial ligand)PROSITE-ProRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Respiratory chain, Transport

Keywords - Ligandi

Heme, Iron, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c1, heme protein, mitochondrial
Alternative name(s):
Complex III subunit 4
Complex III subunit IV
Cytochrome b-c1 complex subunit 4
Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit
Short name:
Cytochrome c-1
Gene namesi
Name:cyt1
ORF Names:SPBC29A3.18
OrganismiSchizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
Taxonomic identifieri284812 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaTaphrinomycotinaSchizosaccharomycetesSchizosaccharomycetalesSchizosaccharomycetaceaeSchizosaccharomyces
Proteomesi
  • UP000002485 Componenti: Chromosome II

Organism-specific databases

EuPathDBiFungiDB:SPBC29A3.18.
PomBaseiSPBC29A3.18. cyt1.

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei270 – 287Helical; Note=Anchors to the membraneSequence analysisAdd BLAST18

GO - Cellular componenti

  • mitochondrial respiratory chain complex III Source: PomBase
  • mitochondrion Source: PomBase
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 56MitochondrionSequence analysisAdd BLAST56
ChainiPRO_000031621957 – 307Cytochrome c1, heme protein, mitochondrialAdd BLAST251

Post-translational modificationi

Binds 1 heme group per subunit.By similarity

Proteomic databases

MaxQBiO59680.
PRIDEiO59680.

Interactioni

Subunit structurei

Fungal cytochrome b-c1 complex contains 10 subunits; 3 respiratory subunits, 2 core proteins and 5 low-molecular weight proteins. Cytochrome b-c1 complex is a homodimer (By similarity).By similarity

Protein-protein interaction databases

BioGridi276984. 1 interactor.
MINTiMINT-4675402.

Structurei

3D structure databases

ProteinModelPortaliO59680.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini89 – 259Cytochrome cPROSITE-ProRule annotationAdd BLAST171

Sequence similaritiesi

Belongs to the cytochrome c family.Curated
Contains 1 cytochrome c domain.PROSITE-ProRule annotation

Keywords - Domaini

Transit peptide, Transmembrane, Transmembrane helix

Phylogenomic databases

HOGENOMiHOG000003867.
InParanoidiO59680.
KOiK00413.
OMAiYGWSHNG.
OrthoDBiEOG092C3Y24.
PhylomeDBiO59680.

Family and domain databases

Gene3Di1.10.760.10. 1 hit.
InterProiIPR009056. Cyt_c-like_dom.
IPR002326. Cyt_c1.
IPR021157. Cyt_c1_TM_anchor_C.
[Graphical view]
PANTHERiPTHR10266. PTHR10266. 1 hit.
PfamiPF02167. Cytochrom_C1. 1 hit.
[Graphical view]
PRINTSiPR00603. CYTOCHROMEC1.
SUPFAMiSSF46626. SSF46626. 1 hit.
SSF81496. SSF81496. 1 hit.
PROSITEiPS51007. CYTC. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

O59680-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MFQFVKKKNE FLKFARLGSR AFTQNAQKTH SKGSNIALVS SSLLSVGMIA
60 70 80 90 100
LYYNVYGPSL SAGTPKEEGL HFIQHDWPQS KVLSGFDHAS LRRGFQVYRE
110 120 130 140 150
VCSACHSLNL IAWRHLVGVT HTADEAKQMA SEVEYEDGPD DEGNMFKRPG
160 170 180 190 200
KLSDFLPPPY PNVEAARASN NGAAPPDLSC VVRGRHGGQD YIYSLLTGYT
210 220 230 240 250
EPPAGVEVPD GMNFNPFFPG TQIAMARPLF DDAVEFEDGT PATTAQAAKD
260 270 280 290 300
VVNFLHWASE PELDIRKKMG FQVITVLTIL TALSMWYKRF KWTPIKNRKI

FYQRPIK
Length:307
Mass (Da):34,340
Last modified:August 1, 1998 - v1
Checksum:iFAD8B9D3A9A3C1B3
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CU329671 Genomic DNA. Translation: CAA18395.1.
PIRiT40089.
RefSeqiNP_595846.1. NM_001021750.2.

Genome annotation databases

EnsemblFungiiSPBC29A3.18.1; SPBC29A3.18.1:pep; SPBC29A3.18.
GeneIDi2540456.
KEGGispo:SPBC29A3.18.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CU329671 Genomic DNA. Translation: CAA18395.1.
PIRiT40089.
RefSeqiNP_595846.1. NM_001021750.2.

3D structure databases

ProteinModelPortaliO59680.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi276984. 1 interactor.
MINTiMINT-4675402.

Proteomic databases

MaxQBiO59680.
PRIDEiO59680.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblFungiiSPBC29A3.18.1; SPBC29A3.18.1:pep; SPBC29A3.18.
GeneIDi2540456.
KEGGispo:SPBC29A3.18.

Organism-specific databases

EuPathDBiFungiDB:SPBC29A3.18.
PomBaseiSPBC29A3.18. cyt1.

Phylogenomic databases

HOGENOMiHOG000003867.
InParanoidiO59680.
KOiK00413.
OMAiYGWSHNG.
OrthoDBiEOG092C3Y24.
PhylomeDBiO59680.

Miscellaneous databases

PROiO59680.

Family and domain databases

Gene3Di1.10.760.10. 1 hit.
InterProiIPR009056. Cyt_c-like_dom.
IPR002326. Cyt_c1.
IPR021157. Cyt_c1_TM_anchor_C.
[Graphical view]
PANTHERiPTHR10266. PTHR10266. 1 hit.
PfamiPF02167. Cytochrom_C1. 1 hit.
[Graphical view]
PRINTSiPR00603. CYTOCHROMEC1.
SUPFAMiSSF46626. SSF46626. 1 hit.
SSF81496. SSF81496. 1 hit.
PROSITEiPS51007. CYTC. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCY1_SCHPO
AccessioniPrimary (citable) accession number: O59680
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 5, 2008
Last sequence update: August 1, 1998
Last modified: November 30, 2016
This is version 105 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Schizosaccharomyces pombe
    Schizosaccharomyces pombe: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.