4xk8
From Proteopedia
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==Crystal structure of plant photosystem I-LHCI super-complex at 2.8 angstrom resolution== | ==Crystal structure of plant photosystem I-LHCI super-complex at 2.8 angstrom resolution== | ||
| - | <StructureSection load='4xk8' size='340' side='right' caption='[[4xk8]], [[Resolution|resolution]] 2.80Å' scene=''> | + | <StructureSection load='4xk8' size='340' side='right'caption='[[4xk8]], [[Resolution|resolution]] 2.80Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4xk8]] is a 32 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana], [http://en.wikipedia.org/wiki/Glycine_max Glycine max], [http://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris], [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] and [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XK8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XK8 FirstGlance]. <br> | <table><tr><td colspan='2'>[[4xk8]] is a 32 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana], [http://en.wikipedia.org/wiki/Glycine_max Glycine max], [http://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris], [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] and [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XK8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XK8 FirstGlance]. <br> | ||
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<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=4xk8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xk8 OCA], [http://pdbe.org/4xk8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xk8 RCSB], [http://www.ebi.ac.uk/pdbsum/4xk8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xk8 ProSAT]</span></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=4xk8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xk8 OCA], [http://pdbe.org/4xk8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xk8 RCSB], [http://www.ebi.ac.uk/pdbsum/4xk8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xk8 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| - | {{Large structure}} | ||
== Function == | == Function == | ||
[[http://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] [[http://www.uniprot.org/uniprot/PSAI_PEA PSAI_PEA]] May help in the organization of the PsaL subunit. [[http://www.uniprot.org/uniprot/CB23_PEA CB23_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> [[http://www.uniprot.org/uniprot/PSAJ_PHAVU PSAJ_PHAVU]] May help in the organization of the PsaE and PsaF subunits. | [[http://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] [[http://www.uniprot.org/uniprot/PSAI_PEA PSAI_PEA]] May help in the organization of the PsaL subunit. [[http://www.uniprot.org/uniprot/CB23_PEA CB23_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> [[http://www.uniprot.org/uniprot/PSAJ_PHAVU PSAJ_PHAVU]] May help in the organization of the PsaE and PsaF subunits. | ||
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</div> | </div> | ||
<div class="pdbe-citations 4xk8" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 4xk8" style="background-color:#fffaf0;"></div> | ||
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| + | ==See Also== | ||
| + | *[[Photosystem I|Photosystem I]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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[[Category: Arabidopsis thaliana]] | [[Category: Arabidopsis thaliana]] | ||
[[Category: Glycine max]] | [[Category: Glycine max]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: Phaseolus vulgaris]] | [[Category: Phaseolus vulgaris]] | ||
[[Category: Photosystem I]] | [[Category: Photosystem I]] | ||
Revision as of 09:00, 1 May 2019
Crystal structure of plant photosystem I-LHCI super-complex at 2.8 angstrom resolution
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