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| | <StructureSection load='2o01' size='340' side='right'caption='[[2o01]], [[Resolution|resolution]] 3.40Å' scene=''> | | <StructureSection load='2o01' size='340' side='right'caption='[[2o01]], [[Resolution|resolution]] 3.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2o01]] is a 17 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana], [https://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris], [https://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] and [https://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O01 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2O01 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2o01]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana], [https://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] and [https://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O01 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2O01 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.4Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1qzv|1qzv]]</div></td></tr> | + | |
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2o01 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o01 OCA], [https://pdbe.org/2o01 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2o01 RCSB], [https://www.ebi.ac.uk/pdbsum/2o01 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2o01 ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2o01 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o01 OCA], [https://pdbe.org/2o01 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2o01 RCSB], [https://www.ebi.ac.uk/pdbsum/2o01 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2o01 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/PSAF_SPIOL PSAF_SPIOL]] Probably participates in efficiency of electron transfer from plastocyanin to P700 (or cytochrome c553 in algae and cyanobacteria). This plastocyanin-docking protein contributes to the specific association of plastocyanin to PSI. [[https://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] [[https://www.uniprot.org/uniprot/PSAI_PEA PSAI_PEA]] May help in the organization of the PsaL subunit. [[https://www.uniprot.org/uniprot/PSAB_PEA PSAB_PEA]] PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. 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. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin (By similarity). [[https://www.uniprot.org/uniprot/CB24_PEA CB24_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> [[https://www.uniprot.org/uniprot/CAB6_ARATH CAB6_ARATH]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated. [[https://www.uniprot.org/uniprot/PSAH_SPIOL PSAH_SPIOL]] Possible role could be the docking of the LHC I antenna complex to the core complex. [[https://www.uniprot.org/uniprot/PSAD_SPIOL PSAD_SPIOL]] PsaD can form complexes with ferredoxin and ferredoxin-oxidoreductase in photosystem I (PS I) reaction center. PSAD may encode the ferredoxin-docking protein. [[https://www.uniprot.org/uniprot/PSAA_PEA PSAA_PEA]] PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. 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. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin. [[https://www.uniprot.org/uniprot/PSAJ_SPIOL PSAJ_SPIOL]] May help in the organization of the PsaE and PsaF subunits. [[https://www.uniprot.org/uniprot/PSAE1_ARATH PSAE1_ARATH]] Stabilizes the interaction between PsaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase (By similarity).
| + | [https://www.uniprot.org/uniprot/PSAA_PEA PSAA_PEA] PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. 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. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| - | *[[Photosystem I|Photosystem I]] | + | *[[Photosystem I 3D structures|Photosystem I 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
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| | [[Category: Arabidopsis thaliana]] | | [[Category: Arabidopsis thaliana]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Phaseolus vulgaris]] | |
| | [[Category: Pisum sativum]] | | [[Category: Pisum sativum]] |
| | [[Category: Spinacia oleracea]] | | [[Category: Spinacia oleracea]] |
| - | [[Category: Amunts, A]] | + | [[Category: Amunts A]] |
| - | [[Category: Drory, O]] | + | [[Category: Drory O]] |
| - | [[Category: Nelson, N]] | + | [[Category: Nelson N]] |
| - | [[Category: Membranal super complex]]
| + | |
| - | [[Category: Photosynthesis]]
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