4xk8

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{{Large structure}}
==Crystal structure of plant photosystem I-LHCI super-complex at 2.8 angstrom resolution==
==Crystal structure of plant photosystem I-LHCI super-complex at 2.8 angstrom resolution==
<StructureSection load='4xk8' size='340' side='right' caption='[[4xk8]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
<StructureSection load='4xk8' size='340' side='right' caption='[[4xk8]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CHL:CHLOROPHYLL+B'>CHL</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</scene>, <scene name='pdbligand=HTG:HEPTYL+1-THIOHEXOPYRANOSIDE'>HTG</scene>, <scene name='pdbligand=LHG:1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE'>LHG</scene>, <scene name='pdbligand=LMG:1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE'>LMG</scene>, <scene name='pdbligand=LMT:DODECYL-BETA-D-MALTOSIDE'>LMT</scene>, <scene name='pdbligand=LUT:(3R,3R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>LUT</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=XAT:(3S,5R,6S,3S,5R,6S)-5,6,5,6-DIEPOXY-5,6,5,6-+TETRAHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>XAT</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CHL:CHLOROPHYLL+B'>CHL</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</scene>, <scene name='pdbligand=HTG:HEPTYL+1-THIOHEXOPYRANOSIDE'>HTG</scene>, <scene name='pdbligand=LHG:1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE'>LHG</scene>, <scene name='pdbligand=LMG:1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE'>LMG</scene>, <scene name='pdbligand=LMT:DODECYL-BETA-D-MALTOSIDE'>LMT</scene>, <scene name='pdbligand=LUT:(3R,3R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>LUT</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=XAT:(3S,5R,6S,3S,5R,6S)-5,6,5,6-DIEPOXY-5,6,5,6-+TETRAHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>XAT</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Photosystem_I Photosystem I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.97.1.12 1.97.1.12] </span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Photosystem_I Photosystem I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.97.1.12 1.97.1.12] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4xk8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xk8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4xk8 RCSB], [http://www.ebi.ac.uk/pdbsum/4xk8 PDBsum]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4xk8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xk8 OCA], [http://pdbe.org/4xk8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xk8 RCSB], [http://www.ebi.ac.uk/pdbsum/4xk8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xk8 ProSAT]</span></td></tr>
</table>
</table>
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{{Large structure}}
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PSAC_PEA PSAC_PEA]] Apoprotein for the two 4Fe-4S centers FA and FB of photosystem I (PSI); essential for photochemical activity. FB is the terminal electron acceptor of PSI, donating electrons to ferredoxin. The C-terminus interacts with PsaA/B/D and helps assemble the protein into the PSI complex. Required for binding of PsaD and PsaE to PSI. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn (By similarity).[HAMAP-Rule:MF_01303] [[http://www.uniprot.org/uniprot/PSAI_PEA PSAI_PEA]] May help in the organization of the PsaL subunit. [[http://www.uniprot.org/uniprot/CB23_PEA CB23_PEA]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.<ref>PMID:2174365</ref> May channel protons produced in the catalytic Mn center of water oxidation into the thylakoid lumen.<ref>PMID:2174365</ref> [[http://www.uniprot.org/uniprot/PSAJ_PHAVU PSAJ_PHAVU]] May help in the organization of the PsaE and PsaF subunits.
[[http://www.uniprot.org/uniprot/PSAC_PEA PSAC_PEA]] Apoprotein for the two 4Fe-4S centers FA and FB of photosystem I (PSI); essential for photochemical activity. FB is the terminal electron acceptor of PSI, donating electrons to ferredoxin. The C-terminus interacts with PsaA/B/D and helps assemble the protein into the PSI complex. Required for binding of PsaD and PsaE to PSI. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn (By similarity).[HAMAP-Rule:MF_01303] [[http://www.uniprot.org/uniprot/PSAI_PEA PSAI_PEA]] May help in the organization of the PsaL subunit. [[http://www.uniprot.org/uniprot/CB23_PEA CB23_PEA]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.<ref>PMID:2174365</ref> May channel protons produced in the catalytic Mn center of water oxidation into the thylakoid lumen.<ref>PMID:2174365</ref> [[http://www.uniprot.org/uniprot/PSAJ_PHAVU PSAJ_PHAVU]] May help in the organization of the PsaE and PsaF subunits.
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 4xk8" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>

Revision as of 12:09, 12 April 2017

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Crystal structure of plant photosystem I-LHCI super-complex at 2.8 angstrom resolution

4xk8, resolution 2.80Å

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