AC   MF_01344;
DC   Protein; auto
TR   HAMAP; MF_01344; -; 1; level=0
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Names: Cytb6_f_subIV
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ID   PETD
DE   RecName: Full=Cytochrome b6-f complex subunit 4;
DE   AltName: Full=17 kDa polypeptide;
GN   Name=petD;
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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.
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; Multi-
CC       pass membrane protein.
else case <OC:Gloeobacter>
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Multi-pass membrane protein.
else
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Multi-pass membrane
CC       protein.
end case
CC   -!- SIMILARITY: Belongs to the cytochrome b family. PetD subfamily.
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DR   PROSITE; PS51003; CYTB_CTER; 1; trigger=no
DR   Pfam; PF00032; Cytochrom_B_C; 1; trigger=no
DR   NCBIfam; TIGR01156; Cytb6/f_IV; 1; trigger=no
DR   General; Transmembrane; -; 3; trigger=yes
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KW   Electron transport
case <OC:Gloeobacter>
KW   Cell membrane
KW   Cell inner membrane
else
KW   Thylakoid
end case
KW   Membrane
KW   Photosynthesis
KW   Transmembrane
KW   Transport
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:0015979; P:photosynthesis
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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Size: 157-189;
Related: None;
Template: P83792; P23230;
Scope:
 Bacteria; Cyanobacteriota
 Plastid
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: In barley and maize a longer, unspliced form of the gene is
 transcribed. It can also be predicted for at least rice and lettuce, and
 probably other Magnoliophytes. It is not known is this RNA is translated.
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# Revision 1.27 2023/06/01
//