HMM Summary Page: TIGR01156

Functioncytb6/f complex subunit IV
Trusted Cutoff127.05
Domain Trusted Cutoff127.05
Noise Cutoff126.95
Domain Noise Cutoff126.95
Isology Typeequivalog
EC Number1.10.9.1
HMM Length160
Mainrole CategoryEnergy metabolism
Subrole CategoryElectron transport
Gene Ontology TermGO:0009055: electron carrier activity molecular_function
GO:0009512: cytochrome b6f complex cellular_component
GO:0055114: oxidation-reduction process biological_process
AuthorUjwal ML, Paulsen IT
Entry DateFeb 4 2001 6:19PM
Last ModifiedFeb 14 2011 3:27PM
CommentThis model describes the subunit IV of the cytochrome b6/f complex. The cyt b6/f complex is central to the functions of the oxygenic phosynthetic electron transport in cyanobacteria and its equivalents in algae and higher plants. Energetically, on the redox scale the cytb6/f complex is placed below the other components - Q(A); Q(B) of the photosystem II in the Z-scheme, along the pathway of the electron transport. The complex is made of the following subunits: cytochrome f; cytochrome b6; Rieske 2Fe-2S; and subunits IV; V; VI; VII. Subunit IV is one of the principal subunits for the binding of the redox prosthetic groups. Each monomer of the complex contains a molecule of chlorophyll a and beta-carotene.
ReferencesDR HAMAP; MF_01344; 116 of 116