P69455 (PETG_PATWE) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Cytochrome b6-f complex subunit 5

Alternative name(s):
Cytochrome b6-f complex subunit PetG
Cytochrome b6-f complex subunit V

Gene names

Name:

petG

Encoded on

Plastid; Chloroplast

Organism

Patellifolia webbiana (Patellaria webbiana) (Beta webbiana)

Taxonomic identifier

35923 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Viridiplantae › Streptophyta › Streptophytina › Embryophyta › Tracheophyta › Euphyllophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › Caryophyllales › Amaranthaceae › Beta

Protein attributes

Sequence length	37 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	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 By similarity. HAMAP-Rule MF_00432
Subunit structure	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 By similarity.
Subcellular location	Plastid › chloroplast thylakoid membrane; Single-pass membrane protein By similarity HAMAP-Rule MF_00432.
Sequence similarities	Belongs to the PetG family.

Ontologies

Keywords
Biological process	Electron transport Photosynthesis Transport
Cellular component	Chloroplast Membrane Plastid Thylakoid
Domain	Transmembrane Transmembrane helix
Gene Ontology (GO)
Biological_process	cytochrome complex assembly Inferred from electronic annotation. Source: HAMAP electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	chloroplast thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell cytochrome b6f complex Inferred from electronic annotation. Source: InterPro integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW
Molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 37	37	Cytochrome b6-f complex subunit 5 HAMAP-Rule MF_00432		PRO_0000216372
Regions
	Transmembrane	5 – 25	21	Helical; Potential

Sequences

	Sequence		Length	Mass (Da)
	P69455 [UniParc]. Last modified March 15, 2005. Version 1. Checksum: A98EA4D30CB983C5	FASTA	37	4,170
	10 20 30 MIEVFLFGIV LGLIPITLAG LFVTAYLQYR RGDQLDL

References

[1]

"The chloroplast trnP-trnW-petG gene cluster in the mitochondrial genomes of Beta vulgaris, B. trigyna and B. webbiana: evolutionary aspects." Kubo T., Yanai Y., Kinoshita T., Mikami T. Curr. Genet. 27:285-289(1995) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: cv. WB11. Tissue: Leaf.

Cross-references

Sequence databases
EMBL GenBank DDBJ	D38021 Genomic DNA. Translation: BAA07223.1.
3D structure databases
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
HAMAP	MF_00432. Cytb6_f_PetG.
InterPro	IPR003683. Cyt_6/f_cplx_su5. [Graphical view]
Pfam	PF02529. PetG. 1 hit. [Graphical view]
PIRSF	PIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAM	SSF103446. Cytochrmb6/f_5. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PETG_PATWE

Accession

Primary (citable) accession number: P69455
Secondary accession number(s): P12121, P32973

Entry history

Integrated into UniProtKB/Swiss-Prot:	March 15, 2005
Last sequence update:	March 15, 2005
Last modified:	April 3, 2013
This is version 35 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program