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==Cyanidioschyzon merolae photosystem I==
==Cyanidioschyzon merolae photosystem I==
<StructureSection load='6fos' size='340' side='right' caption='[[6fos]], [[Resolution|resolution]] 4.00&Aring;' scene=''>
<StructureSection load='6fos' size='340' side='right'caption='[[6fos]], [[Resolution|resolution]] 4.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6fos]] is a 15 chain structure with sequence from [http://en.wikipedia.org/wiki/Cyanidioschyzon_merolae_(strain_10d) Cyanidioschyzon merolae (strain 10d)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FOS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6FOS FirstGlance]. <br>
<table><tr><td colspan='2'>[[6fos]] is a 11 chain structure with sequence from [https://en.wikipedia.org/wiki/Cyanidioschyzon_merolae_strain_10D Cyanidioschyzon merolae strain 10D]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FOS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6FOS FirstGlance]. <br>
</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=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]] 4&#8491;</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='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></td></tr>
<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=6fos FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6fos OCA], [http://pdbe.org/6fos PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6fos RCSB], [http://www.ebi.ac.uk/pdbsum/6fos PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6fos 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=6fos FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6fos OCA], [https://pdbe.org/6fos PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6fos RCSB], [https://www.ebi.ac.uk/pdbsum/6fos PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6fos ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PSAA_CYAM1 PSAA_CYAM1]] 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/cytochrome c6-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 or cytochrome c6. [[http://www.uniprot.org/uniprot/Q85FQ6_CYAM1 Q85FQ6_CYAM1]] May help in the organization of the PsaL subunit.[SAAS:SAAS00400928] [[http://www.uniprot.org/uniprot/PSAB_CYAM1 PSAB_CYAM1]] 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/cytochrome c6-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 or cytochrome c6. [[http://www.uniprot.org/uniprot/PSAJ_CYAM1 PSAJ_CYAM1]] May help in the organization of the PsaE and PsaF subunits. [[http://www.uniprot.org/uniprot/PSAC_CYAM1 PSAC_CYAM1]] 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/cytochrome c6-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.
[https://www.uniprot.org/uniprot/M1UU36_CYAM1 M1UU36_CYAM1]  
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 6fos" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 6fos" style="background-color:#fffaf0;"></div>
==See Also==
*[[Photosystem I 3D structures|Photosystem I 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Photosystem I]]
[[Category: Cyanidioschyzon merolae strain 10D]]
[[Category: Antoshvili, M]]
[[Category: Large Structures]]
[[Category: Caspy, I]]
[[Category: Antoshvili M]]
[[Category: Hippler, M]]
[[Category: Caspy I]]
[[Category: Nelson, N]]
[[Category: Hippler M]]
[[Category: Membrane protein]]
[[Category: Nelson N]]
[[Category: Photosynthesis]]
[[Category: Photosynthetic complex]]
[[Category: Photosystem]]
[[Category: Reaction center]]

Latest revision as of 09:01, 9 April 2025

Cyanidioschyzon merolae photosystem I

6fos, resolution 4.00Å

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