6zoo

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (09:23, 9 April 2025) (edit) (undo)
 
(One intermediate revision not shown.)
Line 1: Line 1:
-
'''Unreleased structure'''
 
-
The entry 6zoo is ON HOLD until Paper Publication
+
==Photosystem I reduced Plastocyanin Complex==
 +
<StructureSection load='6zoo' size='340' side='right'caption='[[6zoo]], [[Resolution|resolution]] 2.74&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[6zoo]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6ZOO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6ZOO 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]] 2.74&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3PH:1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE'>3PH</scene>, <scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</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=LMT:DODECYL-BETA-D-MALTOSIDE'>LMT</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=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SNK:(2~{R})-2-azanyl-3-(4-ethanoylsulfanyl-1~{H}-imidazol-5-yl)propanoic+acid'>SNK</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=6zoo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6zoo OCA], [https://pdbe.org/6zoo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6zoo RCSB], [https://www.ebi.ac.uk/pdbsum/6zoo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6zoo ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/CAB6_ARATH CAB6_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.
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Photosystem I is defined as plastocyanin-ferredoxin oxidoreductase. Taking advantage of genetic engineering, kinetic analyses and cryo-EM, our data provide novel mechanistic insights into binding and electron transfer between PSI and Pc. Structural data at 2.74 A resolution reveals strong hydrophobic interactions in the plant PSI-Pc ternary complex, leading to exclusion of water molecules from PsaA-PsaB/Pc interface once the PSI-Pc complex forms. Upon oxidation of Pc, a slight tilt of bound oxidized Pc allows water molecules to accommodate the space between Pc and PSI to drive Pc dissociation. Such a scenario is consistent with the six times larger dissociation constant of oxidized as compared with reduced Pc and mechanistically explains how this molecular machine optimized electron transfer for fast turnover.
-
Authors:
+
Structure of plant photosystem I-plastocyanin complex reveals strong hydrophobic interactions.,Caspy I, Fadeeva M, Kuhlgert S, Borovikova-Sheinker A, Klaiman D, Masrati G, Drepper F, Ben-Tal N, Hippler M, Nelson N Biochem J. 2021 Jun 25;478(12):2371-2384. doi: 10.1042/BCJ20210267. PMID:34085703<ref>PMID:34085703</ref>
-
Description:
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
[[Category: Unreleased Structures]]
+
</div>
 +
<div class="pdbe-citations 6zoo" style="background-color:#fffaf0;"></div>
 +
 
 +
==See Also==
 +
*[[Photosystem I 3D structures|Photosystem I 3D structures]]
 +
*[[Plastocyanin 3D structures|Plastocyanin 3D structures]]
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
 +
[[Category: Large Structures]]
 +
[[Category: Pisum sativum]]
 +
[[Category: Caspy I]]
 +
[[Category: Nelson N]]
 +
[[Category: Shkolnisky Y]]

Current revision

Photosystem I reduced Plastocyanin Complex

PDB ID 6zoo

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools