4 component system: The Photosynthetic Reaction Center (PRC) Family
| Q83XD1 | Alpha subunit of light-harvesting 1 |
|---|---|
| Q83XD2 | Beta subunit of light-harvesting 1 |
| Q83XC9 | Cytochrome subunit of photosynthetic reaction center |
| Q83XD0 | Reaction center protein L chain |