OCA at 15:37, 29 November 2023

OCA — Wed, 29 Nov 2023 15:37:13 GMT

←Older revision		Revision as of 15:37, 29 November 2023
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-	====	+	==Crystal Structure of Cyanobacterial PSI Monomer from T.elongatus at 6.5 A Resolution==
-	<StructureSection load='7bw2' size='340' side='right'caption='[[7bw2]]' scene=''>	+	<StructureSection load='7bw2' size='340' side='right'caption='[[7bw2]], [[Resolution\|resolution]] 6.50Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[7bw2]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermosynechococcus_vestitus_BP-1 Thermosynechococcus vestitus BP-1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7BW2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7BW2 FirstGlance]. <br>
-	</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=7bw2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bw2 OCA], [https://pdbe.org/7bw2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7bw2 RCSB], [https://www.ebi.ac.uk/pdbsum/7bw2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7bw2 ProSAT]</span></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]] 6.5Å</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=7bw2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bw2 OCA], [https://pdbe.org/7bw2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7bw2 RCSB], [https://www.ebi.ac.uk/pdbsum/7bw2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7bw2 ProSAT]</span></td></tr>
	</table>		</table>
		+	== Function ==
		+	[https://www.uniprot.org/uniprot/PSAA_THEVB PSAA_THEVB] PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin/cytochrome c6-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin or cytochrome c6.<ref>PMID:10066799</ref> <ref>PMID:10066800</ref> <ref>PMID:11418848</ref> <ref>PMID:8901876</ref>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	A high-resolution structure of trimeric cyanobacterial Photosystem I (PSI) from Thermosynechococcus elongatus was reported as the first atomic model of PSI almost 20 years ago. However, the monomeric PSI structure has not yet been reported despite long-standing interest in its structure and extensive spectroscopic characterization of the loss of red chlorophylls upon monomerization. Here, we describe the structure of monomeric PSI from Thermosynechococcus elongatus BP-1. Comparison with the trimer structure gave detailed insights into monomerization-induced changes in both the central trimerization domain and the peripheral regions of the complex. Monomerization-induced loss of red chlorophylls is assigned to a cluster of chlorophylls adjacent to PsaX. Based on our findings, we propose a role of PsaX in the stabilization of red chlorophylls and that lipids of the surrounding membrane present a major source of thermal energy for uphill excitation energy transfer from red chlorophylls to P700.
		+
		+	Cryo-EM structure of a functional monomeric Photosystem I from Thermosynechococcus elongatus reveals red chlorophyll cluster.,Coruh O, Frank A, Tanaka H, Kawamoto A, El-Mohsnawy E, Kato T, Namba K, Gerle C, Nowaczyk MM, Kurisu G Commun Biol. 2021 Mar 8;4(1):304. doi: 10.1038/s42003-021-01808-9. PMID:33686186<ref>PMID:33686186</ref>
		+
		+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>
		+	<div class="pdbe-citations 7bw2" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Photosystem I 3D structures\|Photosystem I 3D structures]]
		+	== References ==
		+	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Z-~~disk~~]]	+	[[Category: Thermosynechococcus vestitus BP-1]]
		+	[[Category: Coruh O]]
		+	[[Category: Eithar EM]]
		+	[[Category: Kurisu G]]
		+	[[Category: Mian Y]]
		+	[[Category: Tanaka H]]

OCA at 06:45, 17 March 2021

OCA — Wed, 17 Mar 2021 06:45:51 GMT

←Older revision		Revision as of 06:45, 17 March 2021
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-	'''Unreleased structure'''

-	~~The entry~~ 7bw2 ~~is ON HOLD until Paper Publication~~	+	====
-		+	<StructureSection load='7bw2' size='340' side='right'caption='[[7bw2]]' scene=''>
-	~~Authors~~:	+	== Structural highlights ==
-		+	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br>
-	~~Description~~:	+	</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=7bw2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bw2 OCA], [https://pdbe.org/7bw2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7bw2 RCSB], [https://www.ebi.ac.uk/pdbsum/7bw2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7bw2 ProSAT]</span></td></tr>
-	[[Category: ~~Unreleased~~ Structures]]	+	</table>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Large Structures]]
		+	[[Category: Z-disk]]

OCA at 05:34, 29 April 2020

OCA — Wed, 29 Apr 2020 05:34:40 GMT

←Older revision		Revision as of 05:34, 29 April 2020
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 7bw2 is ON HOLD	+	The entry 7bw2 is ON HOLD until Paper Publication

	Authors:		Authors:

OCA: Protected "7bw2" [edit=sysop:move=sysop]

OCA — Wed, 22 Apr 2020 04:37:18 GMT

Protected "7bw2" [edit=sysop:move=sysop]

←Older revision

Revision as of 04:37, 22 April 2020

OCA: New page: '''Unreleased structure''' The entry 7bw2 is ON HOLD Authors: Description: Category: Unreleased Structures

OCA — Wed, 22 Apr 2020 04:37:17 GMT

New page: '''Unreleased structure''' The entry 7bw2 is ON HOLD Authors: Description: Category: Unreleased Structures

New page

'''Unreleased structure'''

The entry 7bw2 is ON HOLD

Authors:

Description:
[[Category: Unreleased Structures]]

7bw2 - Revision history

OCA at 15:37, 29 November 2023

OCA at 06:45, 17 March 2021

OCA at 05:34, 29 April 2020

OCA: Protected "7bw2" [edit=sysop:move=sysop]

OCA: New page: '''Unreleased structure''' The entry 7bw2 is ON HOLD Authors: Description: Category: Unreleased Structures