HAMAP rule MF_00432
General rule information
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| Accession | MF_00432 |
| Dates | 18-AUG-2001 (Created)
17-FEB-2023 (Last updated, Version 43) |
| Name | Cytb6_f_PetG |
| Scope(s) |
Bacteria Cyanobacteriota Plastid |
| Template(s) | Q08362 (PETG_CHLRE); [ Recover all ] |
| Triggered by |
HAMAP; MF_00432 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| 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
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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. PetG is required for either the stability or assembly of the cytochrome b6-f complex. |
| 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 PetG family. |
Keywords
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| Transport | |
| Electron transport | |
| Photosynthesis | |
| case <OC:Gloeobacter> | |
| Cell membrane | |
| Cell inner membrane | |
| else | |
| Thylakoid | |
| end case | |
| Membrane | |
| Transmembrane | |
| Transmembrane helix | |
Gene Ontology
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| 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
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| Pfam | PF02529; PetG; 1; |
Features
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| From: PETG_SYNY3 (P74149) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| TRANSMEM | 5 | 25 | /note="Helical" | |||||||||
Additional information
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| Size range | 33-40 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |