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Protein

Cytochrome b6-f complex subunit 5

Gene

petG

Organism
Spinacia oleracea (Spinach)
Status
Reviewed-Annotation score: Annotation score: 2 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 - Biological processi

Keywordsi

Biological processElectron 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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeCaryophyllalesChenopodiaceaeChenopodioideaeAnserineaeSpinacia
Proteomesi
  • UP000054095 Componenti: Chloroplast

Subcellular locationi

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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei5 – 25HelicalUniRule annotationAdd BLAST21

GO - Cellular componenti

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002164051 – 37Cytochrome b6-f complex subunit 5Add BLAST37

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

Structurei

3D structure databases

SMRiP69461.
ModBaseiSearch...
MobiDBiSearch...

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. 1 hit.
InterProiView protein in InterPro
IPR003683. Cyt_6/f_cplx_su5.
PfamiView protein in Pfam
PF02529. PetG. 1 hit.
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)DescriptionActionsGraphical viewLength
Sequence conflicti15P → G AA sequence (Ref. 3) Curated1
Sequence conflicti20G → P in CAA52449 (Ref. 1) Curated1

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

SMRiP69461.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi2715600.

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG. 1 hit.
InterProiView protein in InterPro
IPR003683. Cyt_6/f_cplx_su5.
PfamiView protein in Pfam
PF02529. PetG. 1 hit.
PIRSFiPIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAMiSSF103446. SSF103446. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPETG_SPIOL
AccessioniPrimary (citable) accession number: P69461
Secondary accession number(s): P12121, P32973
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: March 15, 2005
Last modified: May 10, 2017
This is version 47 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference 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.