2o01

From Proteopedia

(Difference between revisions)

Current revision

The Structure of a plant photosystem I supercomplex at 3.4 Angstrom resolution

Structural highlights

2o01 is a 10 chain structure with sequence from Arabidopsis thaliana, Pisum sativum and Spinacia oleracea. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.4Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

All higher organisms on Earth receive energy directly or indirectly from oxygenic photosynthesis performed by plants, green algae and cyanobacteria. Photosystem I (PSI) is a supercomplex of a reaction centre and light-harvesting complexes. It generates the most negative redox potential in nature, and thus largely determines the global amount of enthalpy in living systems. We report the structure of plant PSI at 3.4 A resolution, revealing 17 protein subunits. PsaN was identified in the luminal side of the supercomplex, and most of the amino acids in the reaction centre were traced. The crystal structure of PSI provides a picture at near atomic detail of 11 out of 12 protein subunits of the reaction centre. At this level, 168 chlorophylls (65 assigned with orientations for Q(x) and Q(y) transition dipole moments), 2 phylloquinones, 3 Fe(4)S(4) clusters and 5 carotenoids are described. This structural information extends the understanding of the most efficient nano-photochemical machine in nature.

The structure of a plant photosystem I supercomplex at 3.4 A resolution.,Amunts A, Drory O, Nelson N Nature. 2007 May 3;447(7140):58-63. PMID:17476261^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Amunts A, Drory O, Nelson N. The structure of a plant photosystem I supercomplex at 3.4 A resolution. Nature. 2007 May 3;447(7140):58-63. PMID:17476261 doi:10.1038/nature05687

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2o01"

@@ Line 5: / Line 5: @@
 <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='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.4&#8491;</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='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'>[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>
@@ Line 15: / Line 15: @@
   <jmolCheckbox>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/o0/2o01_consurf.spt"</scriptWhenChecked>
-    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>

2o01

From Proteopedia

Current revision

The Structure of a plant photosystem I supercomplex at 3.4 Angstrom resolution

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

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Proteopedia Page Contributors and Editors (what is this?)

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