6jeo - Revision history

OCA at 02:07, 11 April 2020

OCA — Sat, 11 Apr 2020 02:07:00 GMT

←Older revision		Revision as of 02:07, 11 April 2020
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	<SX load='6jeo' size='340' side='right' viewer='molstar' caption='[[6jeo]], [[Resolution\|resolution]] 3.30Å' scene=''>		<SX load='6jeo' size='340' side='right' viewer='molstar' caption='[[6jeo]], [[Resolution\|resolution]] 3.30Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[6jeo]] is a 48 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp._(strain_pcc_7120_/_sag_25.82_/_utex_2576) Nostoc sp. (strain pcc 7120 / sag 25.82 / utex 2576)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JEO OCA]. For a <b>guided tour on the structure components</b> use [http://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=6JEO FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[6jeo]] is a 48 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp._(strain_pcc_7120_/_sag_25.82_/_utex_2576) Nostoc sp. (strain pcc 7120 / sag 25.82 / utex 2576)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JEO OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6JEO FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CL0:CHLOROPHYLL+A+ISOMER'>CL0</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</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=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>	+	</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=CL0:CHLOROPHYLL+A+ISOMER'>CL0</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</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=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Photosystem_I Photosystem I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.97.1.12 1.97.1.12] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Photosystem_I Photosystem I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.97.1.12 1.97.1.12] </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=6jeo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jeo OCA], [http://pdbe.org/6jeo PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6jeo RCSB], [http://www.ebi.ac.uk/pdbsum/6jeo PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6jeo ProSAT]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6jeo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jeo OCA], [http://pdbe.org/6jeo PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6jeo RCSB], [http://www.ebi.ac.uk/pdbsum/6jeo PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6jeo ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==

OCA at 22:16, 6 March 2020

OCA — Fri, 06 Mar 2020 22:16:31 GMT

←Older revision		Revision as of 22:16, 6 March 2020
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	==Structure of PSI tetramer from Anabaena==		==Structure of PSI tetramer from Anabaena==
-	<~~StructureSection~~ load='6jeo' size='340' side='right'caption='[[6jeo]], [[Resolution\|resolution]] 3.30Å' scene=''>	+	<SX load='6jeo' size='340' side='right' viewer='molstar' caption='[[6jeo]], [[Resolution\|resolution]] 3.30Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[6jeo]] is a 48 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp._(strain_pcc_7120_/_sag_25.82_/_utex_2576) Nostoc sp. (strain pcc 7120 / sag 25.82 / utex 2576)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JEO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6JEO FirstGlance]. <br>		<table><tr><td colspan='2'>[[6jeo]] is a 48 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp._(strain_pcc_7120_/_sag_25.82_/_utex_2576) Nostoc sp. (strain pcc 7120 / sag 25.82 / utex 2576)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JEO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6JEO FirstGlance]. <br>
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	<references/>		<references/>
	__TOC__		__TOC__
-	</~~StructureSection~~>	+	</SX>
	[[Category: Large Structures]]		[[Category: Large Structures]]
	[[Category: Photosystem I]]		[[Category: Photosystem I]]

OCA at 11:00, 13 November 2019

OCA — Wed, 13 Nov 2019 11:00:22 GMT

←Older revision		Revision as of 11:00, 13 November 2019
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-	'''Unreleased structure'''

-	~~The entry~~ 6jeo is ~~ON HOLD until Paper~~ Publication	+	==Structure of PSI tetramer from Anabaena==
		+	<StructureSection load='6jeo' size='340' side='right'caption='[[6jeo]], [[Resolution\|resolution]] 3.30Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[6jeo]] is a 48 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp._(strain_pcc_7120_/_sag_25.82_/_utex_2576) Nostoc sp. (strain pcc 7120 / sag 25.82 / utex 2576)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JEO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6JEO FirstGlance]. <br>
		+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CL0:CHLOROPHYLL+A+ISOMER'>CL0</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</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=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
		+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Photosystem_I Photosystem I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.97.1.12 1.97.1.12] </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=6jeo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jeo OCA], [http://pdbe.org/6jeo PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6jeo RCSB], [http://www.ebi.ac.uk/pdbsum/6jeo PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6jeo ProSAT]</span></td></tr>
		+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/PSAF_NOSS1 PSAF_NOSS1]] Probably participates in efficiency of electron transfer from plastocyanin to P700 (or cytochrome c553 in algae and cyanobacteria). This plastocyanin-docking protein contributes to the specific association of plastocyanin to PSI. [[http://www.uniprot.org/uniprot/PSAC_NOSS1 PSAC_NOSS1]] Apoprotein for the two 4Fe-4S centers FA and FB of photosystem I (PSI); essential for photochemical activity. FB is the terminal electron acceptor of PSI, donating electrons to ferredoxin. The C-terminus interacts with PsaA/B/D and helps assemble the protein into the PSI complex. Required for binding of PsaD and PsaE to PSI. 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.[HAMAP-Rule:MF_01303] [[http://www.uniprot.org/uniprot/PSAI_NOSS1 PSAI_NOSS1]] May help in the organization of the PsaL subunit. [[http://www.uniprot.org/uniprot/PSAB1_NOSS1 PSAB1_NOSS1]] 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 (By similarity). [[http://www.uniprot.org/uniprot/PSAJ_NOSS1 PSAJ_NOSS1]] May help in the organization of the PsaE and PsaF subunits. [[http://www.uniprot.org/uniprot/PSAA_NOSS1 PSAA_NOSS1]] 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. [[http://www.uniprot.org/uniprot/PSAD_NOSS1 PSAD_NOSS1]] PsaD can form complexes with ferredoxin and ferredoxin-oxidoreductase in photosystem I (PS I) reaction center. [[http://www.uniprot.org/uniprot/PSAE_NOSS1 PSAE_NOSS1]] Stabilizes the interaction between PsaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase.
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Photosystem I (PSI) functions to harvest light energy for conversion into chemical energy. The organisation of PSI is variable depending on the species of organism. Here we report the structure of a tetrameric PSI core isolated from a cyanobacterium, Anabaena sp. PCC 7120, analysed by single-particle cryo-electron microscopy (cryo-EM) at 3.3 A resolution. The PSI tetramer has a C2 symmetry and is organised in a dimer of dimers form. The structure reveals interactions at the dimer-dimer interface and the existence of characteristic pigment orientations and inter-pigment distances within the dimer units that are important for unique excitation energy transfer. In particular, characteristic residues of PsaL are identified to be responsible for the formation of the tetramer. Time-resolved fluorescence analyses showed that the PSI tetramer has an enhanced excitation-energy quenching. These structural and spectroscopic findings provide insights into the physiological significance of the PSI tetramer and evolutionary changes of the PSI organisations.

-	~~Authors~~:	+	Structure of a cyanobacterial photosystem I tetramer revealed by cryo-electron microscopy.,Kato K, Nagao R, Jiang TY, Ueno Y, Yokono M, Chan SK, Watanabe M, Ikeuchi M, Shen JR, Akimoto S, Miyazaki N, Akita F Nat Commun. 2019 Oct 30;10(1):4929. doi: 10.1038/s41467-019-12942-8. PMID:31666526<ref>PMID:31666526</ref>

-	~~Description~~:	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	[[Category: ~~Unreleased~~ Structures]]	+	</div>
		+	<div class="pdbe-citations 6jeo" style="background-color:#fffaf0;"></div>
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Large Structures]]
		+	[[Category: Photosystem I]]
		+	[[Category: Akita, F]]
		+	[[Category: Kato, K]]
		+	[[Category: Miyazaki, N]]
		+	[[Category: Nagao, R]]
		+	[[Category: Shen, J R]]
		+	[[Category: Photosynthesis]]
		+	[[Category: Photosystem]]

OCA at 06:52, 1 May 2019

OCA — Wed, 01 May 2019 06:52:36 GMT

←Older revision		Revision as of 06:52, 1 May 2019
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	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 6jeo is ON HOLD	+	The entry 6jeo is ON HOLD until Paper Publication

	Authors:		Authors:

OCA: Protected "6jeo" [edit=sysop:move=sysop]

OCA — Wed, 13 Feb 2019 07:28:35 GMT

Protected "6jeo" [edit=sysop:move=sysop]

←Older revision

Revision as of 07:28, 13 February 2019

OCA: New page: '''Unreleased structure''' The entry 6jeo is ON HOLD Authors: Description: Category: Unreleased Structures

OCA — Wed, 13 Feb 2019 07:28:34 GMT

New page: '''Unreleased structure''' The entry 6jeo is ON HOLD Authors: Description: Category: Unreleased Structures

New page

'''Unreleased structure'''

The entry 6jeo is ON HOLD

Authors:

Description:
[[Category: Unreleased Structures]]