3azc: Difference between revisions
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The | ==Crystal structure of the soluble part of cytochrome b6f complex iron-sulfur subunit from Thermosynechococcus elongatus BP-1== | ||
<StructureSection load='3azc' size='340' side='right'caption='[[3azc]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3azc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermosynechococcus_vestitus_BP-1 Thermosynechococcus vestitus BP-1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3AZC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3AZC 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]] 2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</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=3azc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3azc OCA], [https://pdbe.org/3azc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3azc RCSB], [https://www.ebi.ac.uk/pdbsum/3azc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3azc ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/UCRI_THEVB UCRI_THEVB] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.[HAMAP-Rule:MF_01335] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The `Rieske protein' PetC is one of the key subunits of the cytochrome b(6)f complex. Its Rieske-type [2Fe-2S] cluster participates in the photosynthetic electron-transport chain. Overexpression and careful structure analysis at 2.0 A resolution of the extrinsic soluble domain of PetC from the thermophilic cyanobacterium Thermosynechococcus elongatus BP-1 enabled in-depth spectroscopic and structural characterization and suggested novel structural features. In particular, both the protein structure and the positions of the internal water molecules unexpectedly showed a higher similarity to eukaryotic PetCs than to other prokaryotic PetCs. The structure also revealed a deep pocket on the PetC surface which is oriented towards the membrane surface in the whole complex. Its surface properties suggest a binding site for a hydrophobic compound and the complete conservation of the pocket-forming residues in all known PetC sequences indicates the functional importance of this pocket in the cytochrome b(6)f complex. | |||
Structure of a thermophilic cyanobacterial b(6)f-type Rieske protein.,Veit S, Takeda K, Tsunoyama Y, Rexroth D, Rogner M, Miki K Acta Crystallogr D Biol Crystallogr. 2012 Oct;68(Pt 10):1400-8. Epub 2012 Sep 18. PMID:22993094<ref>PMID:22993094</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3azc" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Cytochrome b6|Cytochrome b6]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Thermosynechococcus vestitus BP-1]] | |||
[[Category: Miki K]] | |||
[[Category: Roegner M]] | |||
[[Category: Takeda K]] | |||
[[Category: Tsunoyama Y]] | |||
[[Category: Veit S]] | |||
Latest revision as of 11:50, 11 October 2023
Crystal structure of the soluble part of cytochrome b6f complex iron-sulfur subunit from Thermosynechococcus elongatus BP-1Crystal structure of the soluble part of cytochrome b6f complex iron-sulfur subunit from Thermosynechococcus elongatus BP-1
Structural highlights
FunctionUCRI_THEVB Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.[HAMAP-Rule:MF_01335] Publication Abstract from PubMedThe `Rieske protein' PetC is one of the key subunits of the cytochrome b(6)f complex. Its Rieske-type [2Fe-2S] cluster participates in the photosynthetic electron-transport chain. Overexpression and careful structure analysis at 2.0 A resolution of the extrinsic soluble domain of PetC from the thermophilic cyanobacterium Thermosynechococcus elongatus BP-1 enabled in-depth spectroscopic and structural characterization and suggested novel structural features. In particular, both the protein structure and the positions of the internal water molecules unexpectedly showed a higher similarity to eukaryotic PetCs than to other prokaryotic PetCs. The structure also revealed a deep pocket on the PetC surface which is oriented towards the membrane surface in the whole complex. Its surface properties suggest a binding site for a hydrophobic compound and the complete conservation of the pocket-forming residues in all known PetC sequences indicates the functional importance of this pocket in the cytochrome b(6)f complex. Structure of a thermophilic cyanobacterial b(6)f-type Rieske protein.,Veit S, Takeda K, Tsunoyama Y, Rexroth D, Rogner M, Miki K Acta Crystallogr D Biol Crystallogr. 2012 Oct;68(Pt 10):1400-8. Epub 2012 Sep 18. PMID:22993094[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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