UniProt functional annotation for P83792

UniProt code: P83792.

Organism: Mastigocladus laminosus (Fischerella sp.).
Taxonomy: Bacteria; Cyanobacteria; Nostocales; Hapalosiphonaceae; Mastigocladus.
 
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. {ECO:0000305|PubMed:14526088}.
 
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. {ECO:0000269|PubMed:14526088}.
Subcellular location: Cellular thylakoid membrane {ECO:0000305|PubMed:14526088}; Multi-pass membrane protein {ECO:0000269|PubMed:14526088}.
Similarity: Belongs to the cytochrome b family. PetD subfamily. {ECO:0000255|HAMAP-Rule:MF_01344}.

Annotations taken from UniProtKB at the EBI.