HAMAP rule MF_00610
General rule information
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| Accession | MF_00610 |
| Dates | 23-DEC-2002 (Created)
17-FEB-2023 (Last updated, Version 51) |
| Name | Cytb6_f_cytF |
| Scope(s) |
Bacteria Cyanobacteriota Plastid |
| 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
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Identifier, protein and gene names
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| Identifier | CYF |
| Protein name | RecName: Full=Cytochrome f; Flags: Precursor; |
| Gene name | Name=petA; |
Comments
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| 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. |
| COFACTOR | Name=heme; Xref=ChEBI:CHEBI:30413; Note=Binds 1 heme group covalently.; |
| SUBUNIT | 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. |
| case <OG:Chloroplast> | |
| SUBCELLULAR LOCATION | Plastid, chloroplast thylakoid membrane; Single- pass membrane protein. |
| else case <OC:Gloeobacter> | |
| SUBCELLULAR LOCATION | Cell inner membrane; Single-pass membrane protein. |
| else | |
| SUBCELLULAR LOCATION | Cellular thylakoid membrane; Single-pass membrane protein. |
| end case | |
| SIMILARITY | Belongs to the cytochrome f family. |
Keywords
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| Transport | |
| Electron transport | |
| Heme | |
| Iron | |
| Metal-binding | |
| case <OC:Gloeobacter> | |
| Cell membrane | |
| Cell inner membrane | |
| else | |
| Thylakoid | |
| end case | |
| Photosynthesis | |
| Membrane | |
| Transmembrane | |
| Signal | |
| Transmembrane helix | |
Gene Ontology
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| 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
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| Pfam | PF01333; Apocytochr_F_C; 1; |
| PRINTS | PR00610; CYTOCHROMEF; 1; |
| PROSITE | PS51010; CYTF; 1; |
| General | Signal; -; 1; |
| General | Transmembrane; -; 1; |
Features
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| From: CYF_BRARR (P36438) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| BINDING | 36 | 36 | /ligand="heme" /ligand_id="ChEBI:CHEBI:30413" /ligand_part="Fe" /ligand_part_id="ChEBI:CHEBI:18248" /note="axial binding residue" |
[FY] | ||||||||
| BINDING | 60 | 60 | /ligand="heme" /ligand_id="ChEBI:CHEBI:30413" /ligand_part="Fe" /ligand_part_id="ChEBI:CHEBI:18248" /note="axial binding residue" |
H | ||||||||
| BINDING | 56 | 56 | /ligand="heme" /ligand_id="ChEBI:CHEBI:30413" /note="covalent" |
C | ||||||||
| BINDING | 59 | 59 | /ligand="heme" /ligand_id="ChEBI:CHEBI:30413" /note="covalent" |
C | ||||||||
Additional information
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| 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. |