5zji

Structure of photosystem I supercomplex with light-harvesting complexes I and II

Loading... Status: waiting for Mol* initialization Structural highlights 5zji is a 11 chain structure with sequence from Zea mays and Zea mays subsp. mays. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.3Å Ligands: BCR, CLA, DGD, LHG, LMG, LMU, LUT, NEX, PQN, TPO, XAT Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function B4FAW3_MAIZE Publication Abstract from PubMed Plants regulate photosynthetic light harvesting to maintain balanced energy flux into photosystems I and II (PSI and PSII). Under light conditions favoring PSII excitation, the PSII antenna, light-harvesting complex II (LHCII), is phosphorylated and forms a supercomplex with PSI core and the PSI antenna, light-harvesting complex I (LHCI). Both LHCI and LHCII then transfer excitation energy to the PSI core. We report the structure of maize PSI-LHCI-LHCII solved by cryo-electron microscopy, revealing the recognition site between LHCII and PSI. The PSI subunits PsaN and PsaO are observed at the PSI-LHCI interface and the PSI-LHCII interface, respectively. Each subunit relays excitation to PSI core through a pair of chlorophyll molecules, thus revealing previously unseen paths for energy transfer between the antennas and the PSI core. Structure of the maize photosystem I supercomplex with light-harvesting complexes I and II.,Pan X, Ma J, Su X, Cao P, Chang W, Liu Z, Zhang X, Li M Science. 2018 Jun 8;360(6393):1109-1113. doi: 10.1126/science.aat1156. PMID:29880686 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Photosystem I 3D structures

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