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==Structure of PSI from H. hongdechloris grown under white light condition==
==Structure of PSI from H. hongdechloris grown under white light condition==
<StructureSection load='6kmw' size='340' side='right'caption='[[6kmw]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
<SX load='6kmw' size='340' side='right' viewer='molstar' caption='[[6kmw]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6kmw]] is a 24 chain structure with sequence from [http://en.wikipedia.org/wiki/Halomicronema_hongdechloris_c2206 Halomicronema hongdechloris c2206]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6KMW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6KMW FirstGlance]. <br>
<table><tr><td colspan='2'>[[6kmw]] is a 24 chain structure with sequence from [https://en.wikipedia.org/wiki/Halomicronema_hongdechloris_C2206 Halomicronema hongdechloris C2206]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6KMW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6KMW 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=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CL0:CHLOROPHYLL+A+ISOMER'>CL0</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</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=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=UNL:UNKNOWN+LIGAND'>UNL</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.35&#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=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</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=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=6kmw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6kmw OCA], [http://pdbe.org/6kmw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6kmw RCSB], [http://www.ebi.ac.uk/pdbsum/6kmw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6kmw 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=6kmw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6kmw OCA], [https://pdbe.org/6kmw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6kmw RCSB], [https://www.ebi.ac.uk/pdbsum/6kmw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6kmw ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/A0A1Z3HPE3_9CYAN A0A1Z3HPE3_9CYAN]] 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.[HAMAP-Rule:MF_01303] [[http://www.uniprot.org/uniprot/A0A1Z3HRY4_9CYAN A0A1Z3HRY4_9CYAN]] 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.[HAMAP-Rule:MF_00482]  PsaA and psaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX.[RuleBase:RU003775] [[http://www.uniprot.org/uniprot/A0A1Z3HRW4_9CYAN A0A1Z3HRW4_9CYAN]] 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.[HAMAP-Rule:MF_00458]  PsaA and psaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX.[RuleBase:RU003775] [[http://www.uniprot.org/uniprot/A0A1Z3HI16_9CYAN A0A1Z3HI16_9CYAN]] Stabilizes the interaction between PsaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase.[HAMAP-Rule:MF_00613]  
[https://www.uniprot.org/uniprot/A0A1Z3HPE3_9CYAN A0A1Z3HPE3_9CYAN] 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.[HAMAP-Rule:MF_01303]
<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 6kmw" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 6kmw" style="background-color:#fffaf0;"></div>
==See Also==
*[[Photosystem I 3D structures|Photosystem I 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</SX>
[[Category: Halomicronema hongdechloris c2206]]
[[Category: Halomicronema hongdechloris C2206]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Photosystem I]]
[[Category: Akita F]]
[[Category: Akita, F]]
[[Category: Kato K]]
[[Category: Kato, K]]
[[Category: Miyazaki N]]
[[Category: Miyazaki, N]]
[[Category: Nagao R]]
[[Category: Nagao, R]]
[[Category: Shen JR]]
[[Category: Shen, J R]]
[[Category: Electron transport]]
[[Category: Photosystem i]]