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Protein

Cytochrome f

Gene

petA

Organism
Synechococcus sp. (strain CC9311)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.UniRule annotation

Cofactori

hemeUniRule annotationNote: Binds 1 heme group covalently.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi28 – 281Iron (heme axial ligand); via amino nitrogenUniRule annotation
Binding sitei48 – 481Heme (covalent)UniRule annotation
Binding sitei51 – 511Heme (covalent)UniRule annotation
Metal bindingi52 – 521Iron (heme axial ligand)UniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Keywords - Ligandi

Heme, Iron, Metal-binding

Enzyme and pathway databases

BioCyciSSP64471:GIVP-2148-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome fUniRule annotation
Gene namesi
Name:petAUniRule annotation
Ordered Locus Names:sync_2148
OrganismiSynechococcus sp. (strain CC9311)
Taxonomic identifieri64471 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechococcus
Proteomesi
  • UP000001961 Componenti: Chromosome

Subcellular locationi

  • Cellular thylakoid membrane UniRule annotation; Single-pass membrane protein UniRule annotation

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei277 – 29721HelicalUniRule annotationAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2323UniRule annotationAdd
BLAST
Chaini24 – 310287Cytochrome fPRO_0000342037Add
BLAST

Interactioni

Subunit structurei

The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, PetD), cytochrome f and the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and PetN. The complex functions as a dimer.UniRule annotation

Protein-protein interaction databases

STRINGi64471.sync_2148.

Structurei

3D structure databases

ProteinModelPortaliQ0I873.
SMRiQ0I873. Positions 28-274.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the cytochrome f family.UniRule annotation

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105D1D. Bacteria.
ENOG410XPEN. LUCA.
HOGENOMiHOG000024481.
KOiK02634.
OMAiHVGGNRG.
OrthoDBiPOG091H13JA.

Family and domain databases

Gene3Di1.20.5.700. 1 hit.
2.60.40.830. 2 hits.
HAMAPiMF_00610. Cytb6_f_cytF. 1 hit.
InterProiIPR024058. Cyt-f_TM.
IPR002325. Cyt_f.
IPR024094. Cyt_f_lg_dom.
IPR011054. Rudment_hybrid_motif.
[Graphical view]
PfamiPF01333. Apocytochr_F_C. 1 hit.
PF16639. Apocytochr_F_N. 1 hit.
[Graphical view]
PRINTSiPR00610. CYTOCHROMEF.
SUPFAMiSSF103431. SSF103431. 1 hit.
SSF49441. SSF49441. 2 hits.
SSF51246. SSF51246. 1 hit.
PROSITEiPS51010. CYTF. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

Q0I873-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRRLLSSTFA ALIVGLAVFS APAASWAYPF WAQQNYDSPR EATGKIVCAN
60 70 80 90 100
CHLAQKLTQA EVPQSVLPDS VFKAVVKIPY DTGVQELGAD GSQVPLQVGA
110 120 130 140 150
VVMLPDGFTL APQDRWTDEI KEETEGVYFT EYSDDQPNVI LVGPIPGDEH
160 170 180 190 200
QEIVFPVLAP DPATDSSISF GKYSIHVGGN RGRGQVYPTG EKSNNTVYTA
210 220 230 240 250
PASGSVSAIE PGDNGASVVT VKSADGAEIT ETVPVGPALL VSVGDVVEAG
260 270 280 290 300
APITDDPNVG GFGQLDTEVV LQNPVRIYGM LAFFAAVALA QIMLVLKKRQ
310
IEKVQAAEGV
Length:310
Mass (Da):32,715
Last modified:October 3, 2006 - v1
Checksum:i4F31A8DED0192200
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000435 Genomic DNA. Translation: ABI46689.1.
RefSeqiWP_011620061.1. NC_008319.1.

Genome annotation databases

EnsemblBacteriaiABI46689; ABI46689; sync_2148.
KEGGisyg:sync_2148.
PATRICi23795386. VBISynSp88089_2246.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000435 Genomic DNA. Translation: ABI46689.1.
RefSeqiWP_011620061.1. NC_008319.1.

3D structure databases

ProteinModelPortaliQ0I873.
SMRiQ0I873. Positions 28-274.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi64471.sync_2148.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABI46689; ABI46689; sync_2148.
KEGGisyg:sync_2148.
PATRICi23795386. VBISynSp88089_2246.

Phylogenomic databases

eggNOGiENOG4105D1D. Bacteria.
ENOG410XPEN. LUCA.
HOGENOMiHOG000024481.
KOiK02634.
OMAiHVGGNRG.
OrthoDBiPOG091H13JA.

Enzyme and pathway databases

BioCyciSSP64471:GIVP-2148-MONOMER.

Family and domain databases

Gene3Di1.20.5.700. 1 hit.
2.60.40.830. 2 hits.
HAMAPiMF_00610. Cytb6_f_cytF. 1 hit.
InterProiIPR024058. Cyt-f_TM.
IPR002325. Cyt_f.
IPR024094. Cyt_f_lg_dom.
IPR011054. Rudment_hybrid_motif.
[Graphical view]
PfamiPF01333. Apocytochr_F_C. 1 hit.
PF16639. Apocytochr_F_N. 1 hit.
[Graphical view]
PRINTSiPR00610. CYTOCHROMEF.
SUPFAMiSSF103431. SSF103431. 1 hit.
SSF49441. SSF49441. 2 hits.
SSF51246. SSF51246. 1 hit.
PROSITEiPS51010. CYTF. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCYF_SYNS3
AccessioniPrimary (citable) accession number: Q0I873
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 1, 2008
Last sequence update: October 3, 2006
Last modified: September 7, 2016
This is version 70 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. 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.