6JLU

Structure of PSII-FCP supercomplex from a centric diatom Chaetoceros gracilis at 3.02 angstrom resolution

This is a non-PDB format compatible entry.

Summary for 6JLU

• Entry DOI: 10.2210/pdb6jlu/pdb
• EMDB information: 9839
• Descriptor: PsbA, PsbJ, PsbK, ... (46 entities in total)
• Functional Keywords: psii-fcp supercomplex, plant protein
• Biological source: Chaetoceros gracilis; More
• Total number of polymer chains: 70
• Total formula weight: 1534413.06

Authors

Pi, X.,Zhao, S.,Wang, W.,Kuang, T.,Sui, S.,Shen, J. (deposition date: 2019-03-06, release date: 2019-07-31, Last modification date: 2019-11-06)

Primary citation

Pi, X.,Zhao, S.,Wang, W.,Liu, D.,Xu, C.,Han, G.,Kuang, T.,Sui, S.F.,Shen, J.R.
The pigment-protein network of a diatom photosystem II-light-harvesting antenna supercomplex.
Science, 365:-, 2019

PubMed Abstract: Diatoms play important roles in global primary productivity and biogeochemical cycling of carbon, in part owing to the ability of their photosynthetic apparatus to adapt to rapidly changing light intensity. We report a cryo-electron microscopy structure of the photosystem II (PSII)-fucoxanthin (Fx) chlorophyll (Chl) a/c binding protein (FCPII) supercomplex from the centric diatom The supercomplex comprises two protomers, each with two tetrameric and three monomeric FCPIIs around a PSII core that contains five extrinsic oxygen-evolving proteins at the lumenal surface. The structure reveals the arrangement of a huge pigment network that contributes to efficient light energy harvesting, transfer, and dissipation processes in the diatoms.

PubMed: 31371578
DOI: 10.1126/science.aax4406

Experimental method

ELECTRON MICROSCOPY (3.02 Å)