The structure of plant photosystem i super-complex at 2.8 Å resolution

Yuval Mazor, Anna Borovikova, Nathan Nelson

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Most life forms on Earth are supported by solar energy harnessed by oxygenic photosynthesis. In eukaryotes, photosynthesis is achieved by large membrane-embedded supercomplexes, 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.

Original languageEnglish (US)
Article numbere07433
JournaleLife
Volume4
Issue numberJUNE2015
DOIs
StatePublished - Jun 15 2015
Externally publishedYes

Fingerprint

Plant Structures
Photosynthesis
Pigments
Solar Energy
Energy Transfer
Carotenoids
Eukaryota
Lipids
Light
Membranes
Excitation energy
Prosthetics
Energy transfer
Solar energy
Proteins
Earth (planet)
Modulation
Antennas
Molecules
chlorophyll b

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Medicine(all)
  • Neuroscience(all)

Cite this

The structure of plant photosystem i super-complex at 2.8 Å resolution. / Mazor, Yuval; Borovikova, Anna; Nelson, Nathan.

In: eLife, Vol. 4, No. JUNE2015, e07433, 15.06.2015.

Research output: Contribution to journalArticle

Mazor, Yuval ; Borovikova, Anna ; Nelson, Nathan. / The structure of plant photosystem i super-complex at 2.8 Å resolution. In: eLife. 2015 ; Vol. 4, No. JUNE2015.
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