Abstract
Photosystem I (PS I) is a large membrane protein complex that catalyzes the first step of solar conversion, the light-induced transmembrane electron transfer, and generates reductants for CO2 assimilation. It consists of 12 different proteins and 127 cofactors that perform light capturing and electron transfer. The function of PS I includes inter-protein electron transfer between PS I and smaller soluble electron transfer proteins. The structure of PS I is discussed with respect to the potential docking sites for the soluble electron acceptors, ferredoxin/flavodoxin, at the stromal side and the soluble electron donors, cytochrome c6/plastocyanin, at the luminal side of the PS I complex. Furthermore, the potential interaction sites with the peripheral antenna proteins are discussed.
Original language | English (US) |
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Pages (from-to) | 40-44 |
Number of pages | 5 |
Journal | FEBS Letters |
Volume | 555 |
Issue number | 1 |
DOIs | |
State | Published - Nov 27 2003 |
Keywords
- Antenna
- Ferredoxin
- Photosynthesis
- Photosystem I
- Plastocyanin
ASJC Scopus subject areas
- Biophysics
- Structural Biology
- Biochemistry
- Molecular Biology
- Genetics
- Cell Biology