View source for 2mwq


==Solution structure of PsbQ from spinacia oleracea==
<StructureSection load='2mwq' size='340' side='right'caption='[[2mwq]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2mwq]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2MWQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2MWQ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2mwq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2mwq OCA], [https://pdbe.org/2mwq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2mwq RCSB], [https://www.ebi.ac.uk/pdbsum/2mwq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2mwq ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PSBQ_SPIOL PSBQ_SPIOL] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The extrinsic proteins of photosystem II of higher plants and green algae PsbO, PsbP, PsbQ, and PsbR are essential for stable oxygen production in the oxygen evolving center. In the available X-ray crystallographic structure of higher plant PsbQ residues S14-Y33 are missing. Building on the backbone NMR assignment of PsbQ, which includes this "missing link", we report the extended resonance assignment including side chain atoms. Based on nuclear Overhauser effect spectra a high resolution solution structure of PsbQ with a backbone RMSD of 0.81 A was obtained from torsion angle dynamics. Within the N-terminal residues 1-45 the solution structure deviates significantly from the X-ray crystallographic one, while the four-helix bundle core found previously is confirmed. A short alpha-helix is observed in the solution structure at the location where a beta-strand had been proposed in the earlier crystallographic study. NMR relaxation data and unrestrained molecular dynamics simulations corroborate that the N-terminal region behaves as a flexible tail with a persistent short local helical secondary structure, while no indications of forming a beta-strand are found. Proteins 2015. (c) 2015 The Authors. Proteins: Structure, Function, and Bioinformatics Published by Wiley Periodicals, Inc.

Solution NMR and molecular dynamics reveal a persistent alpha helix within the dynamic region of PsbQ from photosystem II of higher plants.,Rathner P, Rathner A, Hornicakova M, Wohlschlager C, Chandra K, Kohoutova J, Ettrich R, Wimmer R, Muller N Proteins. 2015 Jul 2. doi: 10.1002/prot.24853. PMID:26138376<ref>PMID:26138376</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2mwq" style="background-color:#fffaf0;"></div>

==See Also==
*[[Photosystem II 3D structures|Photosystem II 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Spinacia oleracea]]
[[Category: Chandra K]]
[[Category: Mueller N]]
[[Category: Rathner P]]
[[Category: Wimmer R]]