The structure of plant photosystem I super-complex at 2.8 angstrom resolution.
Mazor, Y., Borovikova, A., Nelson, N.(2015) Elife 4: e07433-e07433
- PubMed: 26076232 
- DOI: https://doi.org/10.7554/eLife.07433
- Primary Citation of Related Structures:  
4Y28 - PubMed Abstract: 
Most life forms on Earth are supported by solar energy harnessed by oxygenic photosynthesis. In eukaryotes, photosynthesis is achieved by large membrane-embedded super-complexes, containing reaction centers and connected antennae. Here, we report the structure of the higher plant PSI-LHCI super-complex determined at 2.8 Å resolution. The structure includes 16 subunits and more than 200 prosthetic groups, which are mostly light harvesting pigments. The complete structures of the four LhcA subunits of LHCI include 52 chlorophyll a and 9 chlorophyll b molecules, as well as 10 carotenoids and 4 lipids. The structure of PSI-LHCI includes detailed protein pigments and pigment-pigment interactions, essential for the mechanism of excitation energy transfer and its modulation in one of nature's most efficient photochemical machines.
Organizational Affiliation: 
Department of Biochemistry, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel.