The X-ray crystal structure of plant photosystem I is solved to 3.4 Å resolution, revealing 17 protein subunits. This structure provides a picture of 11 out of 12 protein subunits of the reaction centre, 168 chlorophylls, two phylloquinones, three Fe4S4 clusters, and five carotenoids.
- Alexey Amunts
- Omri Drory
- Nathan Nelson