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Protein

Cytochrome b6-f complex subunit 5

Gene

petG

Organism
Spinacia oleracea (Spinach)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

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. PetG is required for either the stability or assembly of the cytochrome b6-f complex.UniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome b6-f complex subunit 5UniRule annotation
Alternative name(s):
Cytochrome b6-f complex subunit PetGUniRule annotation
Cytochrome b6-f complex subunit VUniRule annotation
Gene namesi
Name:petGUniRule annotation
Synonyms:petE
Encoded oniPlastid; Chloroplast
OrganismiSpinacia oleracea (Spinach)
Taxonomic identifieri3562 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeCaryophyllalesAmaranthaceaeChenopodioideaeAnserineaeSpinacia

Subcellular locationi

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

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei5 – 2521HelicalUniRule annotationAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 3737Cytochrome b6-f complex subunit 5PRO_0000216405Add
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

Family & Domainsi

Sequence similaritiesi

Belongs to the PetG family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG.
InterProiIPR003683. Cyt_6/f_cplx_su5.
[Graphical view]
PfamiPF02529. PetG. 1 hit.
[Graphical view]
PIRSFiPIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAMiSSF103446. SSF103446. 1 hit.

Sequencei

Sequence statusi: Complete.

P69461-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30 
MIEVFLFGIV LGLIPITLAG LFVTAYLQYR RGDQLDL
Length:37
Mass (Da):4,170
Last modified:March 15, 2005 - v1
Checksum:iA98EA4D30CB983C5
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti15 – 151P → G AA sequence (Ref. 3) Curated
Sequence conflicti20 – 201G → P in CAA52449 (Ref. 1) Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X74430 Genomic DNA. Translation: CAA52449.1.
AJ400848 Genomic DNA. Translation: CAB88747.1.
RefSeqiNP_054954.1. NC_002202.1.

Genome annotation databases

GeneIDi2715600.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X74430 Genomic DNA. Translation: CAA52449.1.
AJ400848 Genomic DNA. Translation: CAB88747.1.
RefSeqiNP_054954.1. NC_002202.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi2715600.

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG.
InterProiIPR003683. Cyt_6/f_cplx_su5.
[Graphical view]
PfamiPF02529. PetG. 1 hit.
[Graphical view]
PIRSFiPIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAMiSSF103446. SSF103446. 1 hit.
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. Oelmueller R.
    Submitted (JUL-1993) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: cv. Monatol.
    Tissue: Seedling.
  2. "The plastid chromosome of spinach (Spinacia oleracea): complete nucleotide sequence and gene organization."
    Schmitz-Linneweber C., Maier R.M., Alcaraz J.-P., Cottet A., Herrmann R.G., Mache R.
    Plant Mol. Biol. 45:307-315(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: cv. Geant d'hiver and cv. Monatol.
  3. "Low molecular weight subunits associated with the cytochrome b6f complexes from spinach and Chlamydomonas reinhardtii."
    Schmidt C.L., Malkin R.
    Photosyn. Res. 38:73-81(1993)
    Cited for: PROTEIN SEQUENCE OF 1-20.

Entry informationi

Entry nameiPETG_SPIOL
AccessioniPrimary (citable) accession number: P69461
Secondary accession number(s): P12121, P32973
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: March 15, 2005
Last modified: January 7, 2015
This is version 43 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Direct protein sequencing

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.