View source for 7xqp


==PSI-LHCI-LHCII-Lhcb9 supercomplex of Physcomitrella patens==
<StructureSection load='7xqp' size='340' side='right'caption='[[7xqp]], [[Resolution|resolution]] 2.68&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7xqp]] is a 13 chain structure with sequence from [https://en.wikipedia.org/wiki/Physcomitrium_patens Physcomitrium patens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7XQP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7XQP 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]] 2.68&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</scene>, <scene name='pdbligand=LHG:1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE'>LHG</scene>, <scene name='pdbligand=LMG:1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE'>LMG</scene>, <scene name='pdbligand=LMU:DODECYL-ALPHA-D-MALTOSIDE'>LMU</scene>, <scene name='pdbligand=LUT:(3R,3R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>LUT</scene>, <scene name='pdbligand=NEX:(1R,3S)-6-[(5E,7E,9E,11E,13E,15Z,17E)-18-[(1R,3S,6S)-3-hydroxy-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-6-yl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenylidene]-1,5,5-trimethyl-cyclohexane-1,3-diol'>NEX</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene>, <scene name='pdbligand=XAT:(3S,5R,6S,3S,5R,6S)-5,6,5,6-DIEPOXY-5,6,5,6-+TETRAHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>XAT</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=7xqp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xqp OCA], [https://pdbe.org/7xqp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xqp RCSB], [https://www.ebi.ac.uk/pdbsum/7xqp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xqp ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A2K1JC42_PHYPA A0A2K1JC42_PHYPA] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Photosystem I (PSI) possesses a variable supramolecular organization among different photosynthetic organisms to adapt to different light environments. Mosses are evolutionary intermediates that diverged from aquatic green algae and evolved into land plants. The moss Physcomitrium patens (P. patens) has a light-harvesting complex (LHC) superfamily more diverse than those of green algae and higher plants. Here, we solved the structure of a PSI-LHCI-LHCII-Lhcb9 supercomplex from P. patens at 2.68 A resolution using cryo-electron microscopy. This supercomplex contains one PSI-LHCI, one phosphorylated LHCII trimer, one moss-specific LHC protein, Lhcb9, and one additional LHCI belt with four Lhca subunits. The complete structure of PsaO was observed in the PSI core. One Lhcbm2 in the LHCII trimer interacts with PSI core through its phosphorylated N terminus, and Lhcb9 mediates assembly of the whole supercomplex. The complicated pigment arrangement provided important information for possible energy-transfer pathways from the peripheral antennae to the PSI core.

Structural insights into a unique PSI-LHCI-LHCII-Lhcb9 supercomplex from moss Physcomitrium patens.,Zhang S, Tang K, Yan Q, Li X, Shen L, Wang W, He YK, Kuang T, Han G, Shen JR, Zhang X Nat Plants. 2023 May;9(5):832-846. doi: 10.1038/s41477-023-01401-4. Epub 2023 Apr , 24. PMID:37095225<ref>PMID:37095225</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7xqp" style="background-color:#fffaf0;"></div>

==See Also==
*[[Photosystem I 3D structures|Photosystem I 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Physcomitrium patens]]
[[Category: Han GY]]
[[Category: Kuang TY]]
[[Category: Li XY]]
[[Category: Shen JR]]
[[Category: Shen LL]]
[[Category: Tang KL]]
[[Category: Wang WD]]
[[Category: Yan QJ]]
[[Category: Zhang S]]
[[Category: Zhang X]]