|
|
||
|
|
|
|
|
UniProt functional annotation for P83791 | ||
|
|
|
|
|
|
||
| UniProt code: P83791. |
|
||
| 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}. |
|
||
| Cofactor: | |
Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000269|PubMed:12438564, ECO:0000269|PubMed:14526088}; Note=Binds 2 heme groups. One heme group is bound covalently by a single cysteine link, the other one non-covalently. {ECO:0000269|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}. |
| Miscellaneous: | |
Heme 1 (or BH or b566) is high-potential and absorbs at about 566 nm, and heme 2 (or BL or b562) is low-potential and absorbs at about 562 nm. {ECO:0000255|HAMAP-Rule:MF_00633}. |
| Similarity: | |
Belongs to the cytochrome b family. PetB subfamily. {ECO:0000255|HAMAP-Rule:MF_00633}. |
Annotations taken from UniProtKB at the EBI.