AC   MF_00432;
DC   Protein; auto
TR   HAMAP; MF_00432; -; 1; level=0
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Names: Cytb6_f_PetG
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ID   PETG
DE   RecName: Full=Cytochrome b6-f complex subunit 5;
DE   AltName: Full=Cytochrome b6-f complex subunit V;
DE   AltName: Full=Cytochrome b6-f complex subunit PetG;
GN   Name=petG;
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CC   -!- FUNCTION: Component of the cytochrome b6-f complex, which mediates
CC       electron transfer between photosystem II (PSII) and photosystem I
CC       (PSI), cyclic electron flow around PSI, and state transitions. PetG is
CC       required for either the stability or assembly of the cytochrome b6-f
CC       complex.
CC   -!- SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are
CC       cytochrome b6, subunit IV (17 kDa polypeptide, PetD), cytochrome f and
CC       the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and
CC       PetN. The complex functions as a dimer.
case <OG:Chloroplast>
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane; Single-
CC       pass membrane protein.
else case <OC:Gloeobacter>
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Single-pass membrane
CC       protein.
else
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Single-pass membrane
CC       protein.
end case
CC   -!- SIMILARITY: Belongs to the PetG family.
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DR   Pfam; PF02529; PetG; 1; trigger=no
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KW   Transport
KW   Electron transport
KW   Photosynthesis
case <OC:Gloeobacter>
KW   Cell membrane
KW   Cell inner membrane
else
KW   Thylakoid
end case
KW   Membrane
KW   Transmembrane
KW   Transmembrane helix
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GO   GO:0045158; F:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
GO   GO:0017004; P:cytochrome complex assembly
case <OG:Chloroplast>
GO   GO:0009535; C:chloroplast thylakoid membrane
else case <OC:Gloeobacter>
GO   GO:0005886; C:plasma membrane
else
GO   GO:0042651; C:thylakoid membrane
end case
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FT   From: PETG_SYNY3 (P74149)
FT   TRANSMEM        5..25
FT                   /note="Helical"
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Size: 33-40;
Related: None;
Template: Q08362;
Scope:
 Bacteria; Cyanobacteriota
 Plastid
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: None
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# Revision 1.43 2023/02/17
//