|
|
| (4 intermediate revisions by the same user not shown) |
| Line 1: |
Line 1: |
|
| |
|
| ==Cryo-EM structure of the PSII supercomplex from Arabidopsis thaliana== | | ==Cryo-EM structure of the PSII supercomplex from Arabidopsis thaliana== |
| <StructureSection load='5mdx' size='340' side='right' caption='[[5mdx]], [[Resolution|resolution]] 5.30Å' scene=''> | | <SX load='5mdx' size='340' side='right' viewer='molstar' caption='[[5mdx]], [[Resolution|resolution]] 5.30Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[5mdx]] is a 50 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5MDX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5MDX FirstGlance]. <br> | | <table><tr><td colspan='2'>[[5mdx]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5MDX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5MDX FirstGlance]. <br> |
| </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CHL:CHLOROPHYLL+B'>CHL</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PHO:PHEOPHYTIN+A'>PHO</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]] 5.3Å</td></tr> |
| <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Photosystem_II Photosystem II], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.10.3.9 1.10.3.9] </span></td></tr>
| | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PHO:PHEOPHYTIN+A'>PHO</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=5mdx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5mdx OCA], [http://pdbe.org/5mdx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5mdx RCSB], [http://www.ebi.ac.uk/pdbsum/5mdx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5mdx 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=5mdx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5mdx OCA], [https://pdbe.org/5mdx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5mdx RCSB], [https://www.ebi.ac.uk/pdbsum/5mdx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5mdx ProSAT]</span></td></tr> |
| </table> | | </table> |
| == Function == | | == Function == |
| [[http://www.uniprot.org/uniprot/PSBF_ARATH PSBF_ARATH]] This b-type cytochrome is tightly associated with the reaction center of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. [[http://www.uniprot.org/uniprot/PSBM_ARATH PSBM_ARATH]] One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. This subunit is found at the monomer-monomer interface. [[http://www.uniprot.org/uniprot/PSBC_ARATH PSBC_ARATH]] One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation.[HAMAP-Rule:MF_01496] [[http://www.uniprot.org/uniprot/PSBH_ARATH PSBH_ARATH]] One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.[HAMAP-Rule:MF_00752] [[http://www.uniprot.org/uniprot/PSBK_ARATH PSBK_ARATH]] One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. [[http://www.uniprot.org/uniprot/PSBB_ARATH PSBB_ARATH]] One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation.[HAMAP-Rule:MF_01495] [[http://www.uniprot.org/uniprot/CB4A_ARATH CB4A_ARATH]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated. [[http://www.uniprot.org/uniprot/PSBO1_ARATH PSBO1_ARATH]] Stabilizes the manganese cluster which is the primary site of water splitting.<ref>PMID:12123820</ref> <ref>PMID:15722336</ref> [[http://www.uniprot.org/uniprot/Q9LMQ2_ARATH Q9LMQ2_ARATH]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.[RuleBase:RU363080] [[http://www.uniprot.org/uniprot/PSBW_ARATH PSBW_ARATH]] Stabilizes dimeric photosytem II (PSII). In its absence no dimeric PSII accumulates and there is a reduction of monomeric PSII. [[http://www.uniprot.org/uniprot/PSBI_ARATH PSBI_ARATH]] One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.[HAMAP-Rule:MF_01316] [[http://www.uniprot.org/uniprot/PSBD_ARATH PSBD_ARATH]] Photosystem II (PSII) is a light-driven water: plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors. D2 is needed for assembly of a stable PSII complex.[HAMAP-Rule:MF_01383] [[http://www.uniprot.org/uniprot/PSBA_ARATH PSBA_ARATH]] Photosystem II (PSII) is a light-driven water: plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors.[HAMAP-Rule:MF_01379] [[http://www.uniprot.org/uniprot/CB5_ARATH CB5_ARATH]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated. [[http://www.uniprot.org/uniprot/CB1C_ARATH CB1C_ARATH]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated. [[http://www.uniprot.org/uniprot/PSBL_ARATH PSBL_ARATH]] One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. This subunit is found at the monomer-monomer interface and is required for correct PSII assembly and/or dimerization. [[http://www.uniprot.org/uniprot/PSBT_ARATH PSBT_ARATH]] Seems to play a role in the dimerization of PSII. [[http://www.uniprot.org/uniprot/PSBZ_ARATH PSBZ_ARATH]] Controls the interaction of photosystem II (PSII) cores with the light-harvesting antenna. [[http://www.uniprot.org/uniprot/PSBE_ARATH PSBE_ARATH]] This b-type cytochrome is tightly associated with the reaction center of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.[HAMAP-Rule:MF_00642] | | [https://www.uniprot.org/uniprot/PSBH_ARATH PSBH_ARATH] One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.[HAMAP-Rule:MF_00752] |
| <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 19: |
Line 19: |
| </div> | | </div> |
| <div class="pdbe-citations 5mdx" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 5mdx" style="background-color:#fffaf0;"></div> |
| | |
| | ==See Also== |
| | *[[Photosystem II 3D structures|Photosystem II 3D structures]] |
| == References == | | == References == |
| <references/> | | <references/> |
| __TOC__ | | __TOC__ |
| </StructureSection> | | </SX> |
| [[Category: Arabidopsis thaliana]] | | [[Category: Arabidopsis thaliana]] |
| [[Category: Photosystem II]] | | [[Category: Large Structures]] |
| [[Category: Bezouwen, L S.van]]
| | [[Category: Boekema EJ]] |
| [[Category: Boekema, E J]] | | [[Category: Caffarri S]] |
| [[Category: Caffarri, S]] | | [[Category: Kale RS]] |
| [[Category: Kale, R S]] | | [[Category: Kouril R]] |
| [[Category: Kouril, R]] | | [[Category: Oostergetel GT]] |
| [[Category: Oostergetel, G T]] | | [[Category: Thunnissen AMWH]] |
| [[Category: Thunnissen, A M.W H]] | | [[Category: Van Bezouwen LS]] |
| [[Category: Photosynthesis]] | |
| [[Category: Photosystem ii supercomplex]]
| |
| [[Category: Single particle analysis]]
| |