1lgh - Revision history

OCA at 06:06, 3 April 2024

OCA — Wed, 03 Apr 2024 06:06:16 GMT

←Older revision		Revision as of 06:06, 3 April 2024
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	<StructureSection load='1lgh' size='340' side='right'caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>		<StructureSection load='1lgh' size='340' side='right'caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/~~Atcc_14031 Atcc 14031~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LGH FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Magnetospirillum_molischianum Magnetospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>	+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 2.4Å</td></tr>
		+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</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=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [https://pdbe.org/1lgh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [https://www.ebi.ac.uk/pdbsum/1lgh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lgh ProSAT]</span></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=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [https://pdbe.org/1lgh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [https://www.ebi.ac.uk/pdbsum/1lgh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lgh ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/~~LHA_RHOMO LHA_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers. [[https://www.uniprot.org/uniprot/LHB1_RHOMO LHB1_RHOMO]~~] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.	+	[https://www.uniprot.org/uniprot/LHB1_MAGML LHB1_MAGML] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
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	</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=1lgh ConSurf].		</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=1lgh ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
-	<div style="background-color:#fffaf0;">
-	== Publication Abstract from PubMed ==
-	BACKGROUND: The light-harvesting complexes II (LH-2s) are integral membrane proteins that form ring-like structures, oligomers of alpha beta-heterodimers, in the photosynthetic membranes of purple bacteria. They contain a large number of chromophores organized optimally for light absorption and rapid light energy migration. Recently, the structure of the nonameric LH-2 of Rhodopseudomonas acidophila has been determined; we report here the crystal structure of the octameric LH-2 from Rhodospirillum molischianum. The unveiling of similarities and differences in the architecture of these proteins may provide valuable insight into the efficient energy transfer mechanisms of bacterial photosynthesis. RESULTS: The crystal structure of LH-2 from Rs. molischianum has been determined by molecular replacement at 2.4 A resolution using X-ray diffraction. The crystal structure displays two concentric cylinders of sixteen membrane-spanning helical subunits, containing two rings of bacteriochlorophyll-a (BChl-a) molecules. One ring comprises sixteen B850 BChl-as perpendicular to the membrane plane and the other eight B800 BChl-as that are nearly parallel to the membrane plane; eight membrane-spanning lycopenes (the major carotenoid in this complex) stretch out between the B800 and B850 BChl-as. The B800 BChl-as exhibit a different ligation from that of Rps. acidophila (aspartate is the Mg ligand as opposed to formyl-methionine in Rps. acidophila). CONCLUSIONS: The light-harvesting complexes from different bacteria assume various ring sizes. In LH-2 of Rs. molischianum, the Qy transition dipole moments of neighbouring B850 and B800 BChl-as are nearly parallel to each other, that is, they are optimally aligned for Foster exciton transfer. Dexter energy transfer between these chlorophylls is also possible through interactions mediated by lycopenes and B850 BChl-a phytyl tails; the B800 BChl-a and one of the two B850 BChl-as associated with each heterodimeric unit are in van der Waals distance to a lycopene, such that singlet and triplet energy transfer between lycopene and the BChl-as can occur by the Dexter mechanism. The ring structure of the B850 BChl-as is optimal for light energy transfer in that it samples all spatial absorption and emission characteristics and places all oscillator strength into energetically low lying, thermally accessible exciton states.
-
-	The crystal structure of the light-harvesting complex II (B800-850) from Rhodospirillum molischianum.,Koepke J, Hu X, Muenke C, Schulten K, Michel H Structure. 1996 May 15;4(5):581-97. PMID:8736556<ref>PMID:8736556</ref>
-
-	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	</div>
-	<div class="pdbe-citations 1lgh" style="background-color:#fffaf0;"></div>
-	== References ==
-	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: Atcc 14031]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Hu, X]]	+	[[Category: Magnetospirillum molischianum]]
-	[[Category: Koepke, J]]	+	[[Category: Hu X]]
-	[[Category: Michel, H]]	+	[[Category: Koepke J]]
-	[[Category: Schulten, K]]	+	[[Category: Michel H]]
-	~~[[Category: Bacteriochlorophyll]]~~	+	[[Category: Schulten K]]
-	~~[[Category: Dexter energy transfer]]~~	+
-	~~[[Category: Foerster exciton transfer mechanism]]~~	+
-	~~[[Category: Light harvesting complex]]~~	+
-	~~[[Category: Membrane protein]]~~	+
-	~~[[Category: Photosynthesis~~]]	+

OCA at 05:54, 28 April 2021

OCA — Wed, 28 Apr 2021 05:54:06 GMT

←Older revision		Revision as of 05:54, 28 April 2021
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	<StructureSection load='1lgh' size='340' side='right'caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>		<StructureSection load='1lgh' size='340' side='right'caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/Atcc_14031 Atcc 14031]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=1LGH FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_14031 Atcc 14031]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [~~http~~://pdbe.org/1lgh PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/1lgh PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=1lgh ProSAT]</span></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=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [https://pdbe.org/1lgh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [https://www.ebi.ac.uk/pdbsum/1lgh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lgh ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/LHA_RHOMO LHA_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers. [[~~http~~://www.uniprot.org/uniprot/LHB1_RHOMO LHB1_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.	+	[[https://www.uniprot.org/uniprot/LHA_RHOMO LHA_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers. [[https://www.uniprot.org/uniprot/LHB1_RHOMO LHB1_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]

OCA at 08:59, 24 July 2019

OCA — Wed, 24 Jul 2019 08:59:04 GMT

←Older revision		Revision as of 08:59, 24 July 2019
Line 1:		Line 1:

	==CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM==		==CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM==
-	<StructureSection load='1lgh' size='340' side='right' caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>	+	<StructureSection load='1lgh' size='340' side='right'caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_14031 Atcc 14031]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>		<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_14031 Atcc 14031]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
Line 13:		Line 13:
	Check<jmol>		Check<jmol>
	<jmolCheckbox>		<jmolCheckbox>
-	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/lg/1lgh_consurf.spt"</scriptWhenChecked>	+	<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/lg/1lgh_consurf.spt"</scriptWhenChecked>
	<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>		<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
	<text>to colour the structure by Evolutionary Conservation</text>		<text>to colour the structure by Evolutionary Conservation</text>
Line 33:		Line 33:
	</StructureSection>		</StructureSection>
	[[Category: Atcc 14031]]		[[Category: Atcc 14031]]
		+	[[Category: Large Structures]]
	[[Category: Hu, X]]		[[Category: Hu, X]]
	[[Category: Koepke, J]]		[[Category: Koepke, J]]

OCA at 10:36, 18 October 2017

OCA — Wed, 18 Oct 2017 10:36:44 GMT

←Older revision		Revision as of 10:36, 18 October 2017
Line 1:		Line 1:
		+
	==CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM==		==CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM==
	<StructureSection load='1lgh' size='340' side='right' caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>		<StructureSection load='1lgh' size='340' side='right' caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/~~Phaeospirillum_molischianum Phaeospirillum molischianum~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_14031 Atcc 14031]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://pdbe.org/1lgh PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://pdbe.org/1lgh PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1lgh ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 16:		Line 17:
	<text>to colour the structure by Evolutionary Conservation</text>		<text>to colour the structure by Evolutionary Conservation</text>
	</jmolCheckbox>		</jmolCheckbox>
-	</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/~~chain_selection~~.php?pdb_ID=~~2ata~~ ConSurf].	+	</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=1lgh ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
Line 31:		Line 32:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Phaeospirillum molischianum~~]]	+	[[Category: Atcc 14031]]
	[[Category: Hu, X]]		[[Category: Hu, X]]
	[[Category: Koepke, J]]		[[Category: Koepke, J]]

OCA at 10:28, 11 September 2015

OCA — Fri, 11 Sep 2015 10:28:14 GMT

←Older revision		Revision as of 10:28, 11 September 2015
Line 4:		Line 4:
	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>		<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://pdbe.org/1lgh PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 26:		Line 26:
	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	</div>		</div>
		+	<div class="pdbe-citations 1lgh" style="background-color:#fffaf0;"></div>
	== References ==		== References ==
	<references/>		<references/>

OCA at 15:12, 25 December 2014

OCA — Thu, 25 Dec 2014 15:12:05 GMT

←Older revision		Revision as of 15:12, 25 December 2014
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>		<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene><br>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene></td></tr>
-	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum]</span></td></tr>
-	<table>	+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/LHA_RHOMO LHA_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers. [[http://www.uniprot.org/uniprot/LHB1_RHOMO LHB1_RHOMO]] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 29:		Line 31:
	</StructureSection>		</StructureSection>
	[[Category: Phaeospirillum molischianum]]		[[Category: Phaeospirillum molischianum]]
-	[[Category: Hu, X.]]	+	[[Category: Hu, X]]
-	[[Category: Koepke, J.]]	+	[[Category: Koepke, J]]
-	[[Category: Michel, H.]]	+	[[Category: Michel, H]]
-	[[Category: Schulten, K.]]	+	[[Category: Schulten, K]]
	[[Category: Bacteriochlorophyll]]		[[Category: Bacteriochlorophyll]]
	[[Category: Dexter energy transfer]]		[[Category: Dexter energy transfer]]

OCA at 13:05, 28 September 2014

OCA — Sun, 28 Sep 2014 13:05:45 GMT

←Older revision		Revision as of 13:05, 28 September 2014
Line 1:		Line 1:
-	[[~~Image~~:1lgh.~~png\|left~~\|200px]]	+	==CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM==
		+	<StructureSection load='1lgh' size='340' side='right' caption='[[1lgh]], [[Resolution\|resolution]] 2.40Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LGH FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=DET:UNDECYLAMINE-N,N-DIMETHYL-N-OXIDE'>DET</scene>, <scene name='pdbligand=HTO:HEPTANE-1,2,3-TRIOL'>HTO</scene>, <scene name='pdbligand=LYC:LYCOPENE'>LYC</scene><br>
		+	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lgh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lgh RCSB], [http://www.ebi.ac.uk/pdbsum/1lgh PDBsum]</span></td></tr>
		+	<table>
		+	== Evolutionary Conservation ==
		+	[[Image:Consurf_key_small.gif\|200px\|right]]
		+	Check<jmol>
		+	<jmolCheckbox>
		+	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/lg/1lgh_consurf.spt"</scriptWhenChecked>
		+	<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
		+	<text>to colour the structure by Evolutionary Conservation</text>
		+	</jmolCheckbox>
		+	</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/chain_selection.php?pdb_ID=2ata ConSurf].
		+	<div style="clear:both"></div>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	BACKGROUND: The light-harvesting complexes II (LH-2s) are integral membrane proteins that form ring-like structures, oligomers of alpha beta-heterodimers, in the photosynthetic membranes of purple bacteria. They contain a large number of chromophores organized optimally for light absorption and rapid light energy migration. Recently, the structure of the nonameric LH-2 of Rhodopseudomonas acidophila has been determined; we report here the crystal structure of the octameric LH-2 from Rhodospirillum molischianum. The unveiling of similarities and differences in the architecture of these proteins may provide valuable insight into the efficient energy transfer mechanisms of bacterial photosynthesis. RESULTS: The crystal structure of LH-2 from Rs. molischianum has been determined by molecular replacement at 2.4 A resolution using X-ray diffraction. The crystal structure displays two concentric cylinders of sixteen membrane-spanning helical subunits, containing two rings of bacteriochlorophyll-a (BChl-a) molecules. One ring comprises sixteen B850 BChl-as perpendicular to the membrane plane and the other eight B800 BChl-as that are nearly parallel to the membrane plane; eight membrane-spanning lycopenes (the major carotenoid in this complex) stretch out between the B800 and B850 BChl-as. The B800 BChl-as exhibit a different ligation from that of Rps. acidophila (aspartate is the Mg ligand as opposed to formyl-methionine in Rps. acidophila). CONCLUSIONS: The light-harvesting complexes from different bacteria assume various ring sizes. In LH-2 of Rs. molischianum, the Qy transition dipole moments of neighbouring B850 and B800 BChl-as are nearly parallel to each other, that is, they are optimally aligned for Foster exciton transfer. Dexter energy transfer between these chlorophylls is also possible through interactions mediated by lycopenes and B850 BChl-a phytyl tails; the B800 BChl-a and one of the two B850 BChl-as associated with each heterodimeric unit are in van der Waals distance to a lycopene, such that singlet and triplet energy transfer between lycopene and the BChl-as can occur by the Dexter mechanism. The ring structure of the B850 BChl-as is optimal for light energy transfer in that it samples all spatial absorption and emission characteristics and places all oscillator strength into energetically low lying, thermally accessible exciton states.

-	~~{{STRUCTURE_1lgh\| PDB=1lgh \| SCENE= }}~~	+	The crystal structure of the light-harvesting complex II (B800-850) from Rhodospirillum molischianum.,Koepke J, Hu X, Muenke C, Schulten K, Michel H Structure. 1996 May 15;4(5):581-97. PMID:8736556<ref>PMID:8736556</ref>

-	~~===CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM===~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-	~~{{ABSTRACT_PUBMED_8736556}}~~	+	== References ==
-		+	<references/>
-	~~==About this Structure==~~	+	__TOC__
-	~~[[1lgh]] is~~ a ~~8 chain structure with sequence from [http://en~~.~~wikipedia~~.~~org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]~~. ~~Full crystallographic information is available from [http:~~/~~/oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA].~~	+	</StructureSection>
-		+
-	==~~Reference~~==	+
-	<~~ref group="xtra">PMID:008736556<~~/~~ref~~><~~references group="xtra"~~/>	+
	[[Category: Phaeospirillum molischianum]]		[[Category: Phaeospirillum molischianum]]
	[[Category: Hu, X.]]		[[Category: Hu, X.]]

OCA: Protected "1lgh" [edit=sysop:move=sysop]

OCA — Wed, 05 Dec 2012 19:37:50 GMT

Protected "1lgh" [edit=sysop:move=sysop]

←Older revision

Revision as of 19:37, 5 December 2012

OCA at 19:37, 5 December 2012

OCA — Wed, 05 Dec 2012 19:37:46 GMT

←Older revision		Revision as of 19:37, 5 December 2012
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-	{{Seed}}
	[[Image:1lgh.png\|left\|200px]]		[[Image:1lgh.png\|left\|200px]]

-	<!--
-	The line below this paragraph, containing "STRUCTURE_1lgh", creates the "Structure Box" on the page.
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	{{STRUCTURE_1lgh\| PDB=1lgh \| SCENE= }}		{{STRUCTURE_1lgh\| PDB=1lgh \| SCENE= }}

	===CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM===		===CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM RHODOSPIRILLUM MOLISCHIANUM===

-
-	<!--
-	The line below this paragraph, {{ABSTRACT_PUBMED_8736556}}, adds the Publication Abstract to the page
-	(as it appears on PubMed at http://www.pubmed.gov), where 8736556 is the PubMed ID number.
-	-->
	{{ABSTRACT_PUBMED_8736556}}		{{ABSTRACT_PUBMED_8736556}}

	==About this Structure==		==About this Structure==
-	~~1LGH~~ is a 8 ~~chains~~ structure with ~~sequences~~ from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA].	+	[[1lgh]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA].

	==Reference==		==Reference==
-	<ref group="xtra">PMID:~~8736556~~</ref><references group="xtra"/>	+	<ref group="xtra">PMID:008736556</ref><references group="xtra"/>
	[[Category: Phaeospirillum molischianum]]		[[Category: Phaeospirillum molischianum]]
	[[Category: Hu, X.]]		[[Category: Hu, X.]]
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	[[Category: Membrane protein]]		[[Category: Membrane protein]]
	[[Category: Photosynthesis]]		[[Category: Photosynthesis]]
-
-	''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Apr 28 11:13:03 2010''

OCA at 08:13, 28 April 2010

OCA — Wed, 28 Apr 2010 08:13:05 GMT

←Older revision		Revision as of 08:13, 28 April 2010
Line 20:		Line 20:

	==About this Structure==		==About this Structure==
-	1LGH is a 8 chains structure of sequences from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA].	+	1LGH is a 8 chains structure with sequences from [http://en.wikipedia.org/wiki/Phaeospirillum_molischianum Phaeospirillum molischianum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LGH OCA].

	==Reference==		==Reference==
Line 36:		Line 36:
	[[Category: Photosynthesis]]		[[Category: Photosynthesis]]

-	''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on ~~Tue Feb 17 19~~:53:~~39 2009~~''	+	''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Apr 28 11:13:03 2010''