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HAMAP rule MF_00432

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General rule information [?]

Accession MF_00432
Dates 18-AUG-2001 (Created)
17-FEB-2023 (Last updated, Version 43)
Name Cytb6_f_PetG
Scope(s) Bacteria
Template(s) Q08362 (PETG_CHLRE); [ Recover all ]
Triggered by HAMAP; MF_00432 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier PETG
Protein name RecName: Full=Cytochrome b6-f complex subunit 5;
AltName: Full=Cytochrome b6-f complex subunit V;
AltName: Full=Cytochrome b6-f complex subunit PetG;
Gene name Name=petG;

Comments [?]

FUNCTIONComponent 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.
SUBUNITThe 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.
case <OG:Chloroplast>
SUBCELLULAR LOCATIONPlastid, chloroplast thylakoid membrane; Single- pass membrane protein.
else case <OC:Gloeobacter>
SUBCELLULAR LOCATIONCell inner membrane; Single-pass membrane protein.
SUBCELLULAR LOCATIONCellular thylakoid membrane; Single-pass membrane protein.
end case
SIMILARITYBelongs to the PetG family.

Keywords [?]

Gene Ontology [?]

GO:0045158; Molecular function:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
GO:0017004; Biological process:cytochrome complex assembly
case <OG:Chloroplast>
GO:0009535; Cellular component:chloroplast thylakoid membrane
else case <OCellular component:Gloeobacter>
GO:0005886; Cellular component:plasma membrane
else; https://www.ebi.ac.uk/QuickGO/term/else
GO:0042651; Cellular component:thylakoid membrane
end case

Cross-references [?]

Pfam PF02529; PetG; 1;

Features [?]

From: PETG_SYNY3 (P74149)
Key From To Description Tag Condition FTGroup
TRANSMEM 5 25 /note="Helical"

Additional information [?]

Size range 33-40 amino acids
Related rules None
Fusion Nter: None Cter: None

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