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HAMAP rule MF_00610

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General rule information [?]

Accession MF_00610
Dates 23-DEC-2002 (Created)
17-FEB-2023 (Last updated, Version 51)
Name Cytb6_f_cytF
Scope(s) Bacteria
Template(s) P36438 (CYF_BRARR); P23577 (CYF_CHLRE); P83793 (CYF_MASLA); [ Recover all ]
Triggered by HAMAP; MF_00610 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier CYF
Protein name RecName: Full=Cytochrome f;
                 Flags: Precursor;
Gene name Name=petA;

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.
COFACTOR Name=heme; Xref=ChEBI:CHEBI:30413; Note=Binds 1 heme group covalently.;
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 cytochrome f family.

Keywords [?]

Gene Ontology [?]

GO:0009055; Molecular function:electron transfer activity
GO:0015979; Biological process:photosynthesis
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 PF01333; Apocytochr_F_C; 1;
General Signal; -; 1;
General Transmembrane; -; 1;

Features [?]

From: CYF_BRARR (P36438)
Key From To Description Tag Condition FTGroup
BINDING 36 36 /ligand="heme"
/note="axial binding residue"
BINDING 60 60 /ligand="heme"
/note="axial binding residue"
BINDING 56 56 /ligand="heme"
BINDING 59 59 /ligand="heme"

Additional information [?]

Size range 300-342 amino acids
Related rules None
Fusion Nter: None Cter: None
Comments In LEPTE the N-terminus is unusually long, not used in seed alignment or size range. In GLOVI the first conserved heme axial ligand Phe or Tyr is a Trp, the sequence is designated atypical.

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