View source for 7wfg


==Subcomplexes A and E in NDH complex from Arabidopsis==
<StructureSection load='7wfg' size='340' side='right'caption='[[7wfg]], [[Resolution|resolution]] 4.33&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7wfg]] is a 9 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=7WFG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7WFG FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.33&#8491;</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=7wfg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7wfg OCA], [https://pdbe.org/7wfg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7wfg RCSB], [https://www.ebi.ac.uk/pdbsum/7wfg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7wfg ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NDHH_ARATH NDHH_ARATH] NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be plastoquinone. Couples the redox reaction to proton translocation, and thus conserves the redox energy in a proton gradient.[HAMAP-Rule:MF_01358]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cyclic electron transport/flow (CET/CEF) in chloroplasts is a regulatory process essential for the optimization of plant photosynthetic efficiency. A crucial CEF pathway is catalyzed by a membrane-embedded NADH dehydrogenase-like (NDH) complex that contains at least 29 protein subunits and associates with photosystem I (PSI) to form the NDH-PSI supercomplex. Here, we report the 3.9 A resolution structure of the Arabidopsis thaliana NDH-PSI (AtNDH-PSI) supercomplex. We constructed structural models for 26 AtNDH subunits, among which 11 are unique to chloroplasts and stabilize the core part of the NDH complex. In the supercomplex, one NDH can bind up to two PSI-light-harvesting complex I (PSI-LHCI) complexes at both sides of its membrane arm. Two minor LHCIs, Lhca5 and Lhca6, each present in one PSI-LHCI, interact with NDH and contribute to supercomplex formation and stabilization. Collectively, our study reveals the structural details of the AtNDH-PSI supercomplex assembly and provides a molecular basis for further investigation of the regulatory mechanism of CEF in plants.

Supramolecular assembly of chloroplast NADH dehydrogenase-like complex with photosystem I from Arabidopsis thaliana.,Su X, Cao D, Pan X, Shi L, Liu Z, Dall'Osto L, Bassi R, Zhang X, Li M Mol Plant. 2022 Mar 7;15(3):454-467. doi: 10.1016/j.molp.2022.01.020. Epub 2022 , Feb 2. PMID:35123031<ref>PMID:35123031</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7wfg" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Arabidopsis thaliana]]
[[Category: Large Structures]]
[[Category: Li M]]
[[Category: Pan XW]]