Cytochrome f

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Cytochrome f (Cytf) is the largest subunit of the cytochrome b6f complex. This complex transfers electrons from plastocyanin to the two reaction center complexes of oxygenic photosynthetic membranes.[1]

See also Hemeproteins.

Structural highlights

The cytochrome b6f complex contains 4 subunits: Cytf, Cytb6, Rieske iron-sulfur protein and subunit IV. Cytf has an internal chain of water molecules conserved in all its 3D structures. The water chain is assumed to be a proton wire.

in Turnip cytochrome f

(PDB entry 1ctm).

3D structures of cytochrome f

Cytochrome f 3D structures


Turnip heme-containing cytochrome f (PDB entry 1ctm)

Drag the structure with the mouse to rotate

ReferencesReferences

  1. Prince RC, George GN. Cytochrome f revealed. Trends Biochem Sci. 1995 Jun;20(6):217-8. PMID:7631417

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