7bgi: Difference between revisions
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New page: '''Unreleased structure''' The entry 7bgi is ON HOLD until Paper Publication Authors: Description: Category: Unreleased Structures |
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==Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii== | |||
<StructureSection load='7bgi' size='340' side='right'caption='[[7bgi]], [[Resolution|resolution]] 2.54Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[7bgi]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7BGI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7BGI FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.54Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3PH:1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE'>3PH</scene>, <scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=C7Z:(1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol'>C7Z</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=DAO:LAURIC+ACID'>DAO</scene>, <scene name='pdbligand=DGA:DIACYL+GLYCEROL'>DGA</scene>, <scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</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=LPX:(2S)-3-{[(R)-(2-AMINOETHOXY)(HYDROXY)PHOSPHORYL]OXY}-2-HYDROXYPROPYL+HEXADECANOATE'>LPX</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=NKP:(2R)-2-HYDROXY-3-(PHOSPHONOOXY)PROPYL+(9E)-OCTADEC-9-ENOATE'>NKP</scene>, <scene name='pdbligand=OCA:OCTANOIC+ACID+(CAPRYLIC+ACID)'>OCA</scene>, <scene name='pdbligand=PLM:PALMITIC+ACID'>PLM</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=QTB:(3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one'>QTB</scene>, <scene name='pdbligand=RRX:(3R)-BETA,BETA-CAROTEN-3-OL'>RRX</scene>, <scene name='pdbligand=SNC:S-NITROSO-CYSTEINE'>SNC</scene>, <scene name='pdbligand=SPH:SPHINGOSINE'>SPH</scene>, <scene name='pdbligand=SQD:1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL'>SQD</scene>, <scene name='pdbligand=T7X:PHOSPHATIDYLINOSITOL'>T7X</scene></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=7bgi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bgi OCA], [https://pdbe.org/7bgi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7bgi RCSB], [https://www.ebi.ac.uk/pdbsum/7bgi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7bgi ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/PSAA_CHLRE PSAA_CHLRE] 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. Both potential cofactor branches in PSI seem to be active; however, electron transfer seems to proceed preferentially down the path including the phylloquinone bound by PsaA. | |||
==See Also== | |||
*[[Photosystem I 3D structures|Photosystem I 3D structures]] | |||
__TOC__ | |||
[[Category: | </StructureSection> | ||
[[Category: Chlamydomonas reinhardtii]] | |||
[[Category: Large Structures]] | |||
[[Category: Caspy I]] | |||
[[Category: Nelson N]] | |||
Latest revision as of 09:37, 16 September 2026
Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii
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