This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


2bhw

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (06:38, 1 May 2024) (edit) (undo)
 
(12 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:2bhw.gif|left|200px]]
 
-
{{Structure
+
==PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION==
-
|PDB= 2bhw |SIZE=350|CAPTION= <scene name='initialview01'>2bhw</scene>, resolution 2.5&Aring;
+
<StructureSection load='2bhw' size='340' side='right'caption='[[2bhw]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
-
|SITE= <scene name='pdbsite=AC1:Dgd+Binding+Site+For+Chain+C'>AC1</scene>
+
== Structural highlights ==
-
|LIGAND= <scene name='pdbligand=CHL:CHLOROPHYLL+B'>CHL</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=LUX:(3R,3&#39;R,6&#39;S,9R,9&#39;R,13R,13&#39;S)-4&#39;,5&#39;-DIDEHYDRO-5&#39;,6&#39;,7&#39;,8&#39;,9,9&#39;,10,10&#39;,11,11&#39;,12,12&#39;,13,13&#39;,14,14&#39;,15,15&#39;-OCTADECAHYDRO-BETA,BETA-CAROTENE-3,3&#39;-DIOL'>LUX</scene>, <scene name='pdbligand=NEX:(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL'>NEX</scene>, <scene name='pdbligand=XAT:(3S,5R,6S,3&#39;S,5&#39;R,6&#39;S)-5,6,5&#39;,6&#39;-DIEPOXY-5,6,5&#39;,6&#39;-+TETRAHYDRO-BETA,BETA-CAROTENE-3,3&#39;-DIOL'>XAT</scene>
+
<table><tr><td colspan='2'>[[2bhw]] is a 3 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=2BHW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BHW FirstGlance]. <br>
-
|ACTIVITY=
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
-
|GENE=
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CHL:CHLOROPHYLL+B'>CHL</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=LUX:(3R,3R,6S,9R,9R,13R,13S)-4,5-DIDEHYDRO-5,6,7,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15-OCTADECAHYDRO-BETA,BETA-CAROTENE-3,3-DIOL'>LUX</scene>, <scene name='pdbligand=NEX:(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL'>NEX</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>
-
|DOMAIN=
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bhw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bhw OCA], [https://pdbe.org/2bhw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bhw RCSB], [https://www.ebi.ac.uk/pdbsum/2bhw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bhw ProSAT]</span></td></tr>
-
|RELATEDENTRY=
+
</table>
-
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2bhw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bhw OCA], [http://www.ebi.ac.uk/pdbsum/2bhw PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2bhw RCSB]</span>
+
== Function ==
-
}}
+
[https://www.uniprot.org/uniprot/CB22_PEA CB22_PEA] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.<ref>PMID:2174365</ref> May channel protons produced in the catalytic Mn center of water oxidation into the thylakoid lumen.<ref>PMID:2174365</ref>
-
 
+
== Evolutionary Conservation ==
-
'''PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION'''
+
[[Image:Consurf_key_small.gif|200px|right]]
-
 
+
Check<jmol>
-
 
+
<jmolCheckbox>
-
==Overview==
+
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bh/2bhw_consurf.spt"</scriptWhenChecked>
-
The plant light-harvesting complex of photosystem II (LHC-II) collects and transmits solar energy for photosynthesis in chloroplast membranes and has essential roles in regulation of photosynthesis and in photoprotection. The 2.5 A structure of pea LHC-II determined by X-ray crystallography of stacked two-dimensional crystals shows how membranes interact to form chloroplast grana, and reveals the mutual arrangement of 42 chlorophylls a and b, 12 carotenoids and six lipids in the LHC-II trimer. Spectral assignment of individual chlorophylls indicates the flow of energy in the complex and the mechanism of photoprotection in two close chlorophyll a-lutein pairs. We propose a simple mechanism for the xanthophyll-related, slow component of nonphotochemical quenching in LHC-II, by which excess energy is transferred to a zeaxanthin replacing violaxanthin in its binding site, and dissipated as heat. Our structure shows the complex in a quenched state, which may be relevant for the rapid, pH-induced component of nonphotochemical quenching.
+
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
-
 
+
<text>to colour the structure by Evolutionary Conservation</text>
-
==About this Structure==
+
</jmolCheckbox>
-
2BHW is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BHW OCA].
+
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2bhw ConSurf].
-
 
+
<div style="clear:both"></div>
-
==Reference==
+
== References ==
-
Mechanisms of photoprotection and nonphotochemical quenching in pea light-harvesting complex at 2.5 A resolution., Standfuss J, Terwisscha van Scheltinga AC, Lamborghini M, Kuhlbrandt W, EMBO J. 2005 Mar 9;24(5):919-28. Epub 2005 Feb 17. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15719016 15719016]
+
<references/>
 +
__TOC__
 +
</StructureSection>
 +
[[Category: Large Structures]]
[[Category: Pisum sativum]]
[[Category: Pisum sativum]]
-
[[Category: Single protein]]
+
[[Category: Kuehlbrandt W]]
-
[[Category: Kuehlbrandt, W.]]
+
[[Category: Lamborghini M]]
-
[[Category: Lamborghini, M.]]
+
[[Category: Standfuss J]]
-
[[Category: Scheltinga, A C.Terwisscha Van.]]
+
[[Category: Terwisscha van Scheltinga AC]]
-
[[Category: Standfuss, J.]]
+
-
[[Category: chlorophyll]]
+
-
[[Category: chloroplast]]
+
-
[[Category: chromophore]]
+
-
[[Category: lhc-ii]]
+
-
[[Category: light-harvesting]]
+
-
[[Category: membrane]]
+
-
[[Category: membrane protein]]
+
-
[[Category: phosphorylation]]
+
-
[[Category: photosynthesis]]
+
-
[[Category: photosystem i]]
+
-
[[Category: photosystem ii]]
+
-
[[Category: plastid]]
+
-
[[Category: thylakoid]]
+
-
[[Category: transit peptide]]
+
-
[[Category: transmembrane]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:06:41 2008''
+

Current revision

PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION

PDB ID 2bhw

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2bhw"
Personal tools