7amb - Revision history

OCA at 12:12, 1 February 2024

OCA — Thu, 01 Feb 2024 12:12:07 GMT

←Older revision		Revision as of 12:12, 1 February 2024
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	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[7amb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Aequorea_victoria Aequorea victoria]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AMB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AMB FirstGlance]. <br>		<table><tr><td colspan='2'>[[7amb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Aequorea_victoria Aequorea victoria]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AMB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AMB FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PIA:[(4Z)-2-[(1S)-1-AMINOETHYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETIC+ACID'>PIA</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]] 1.63Å</td></tr>
		+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PIA:[(4Z)-2-[(1S)-1-AMINOETHYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETIC+ACID'>PIA</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=7amb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7amb OCA], [https://pdbe.org/7amb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7amb RCSB], [https://www.ebi.ac.uk/pdbsum/7amb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7amb 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=7amb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7amb OCA], [https://pdbe.org/7amb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7amb RCSB], [https://www.ebi.ac.uk/pdbsum/7amb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7amb ProSAT]</span></td></tr>
	</table>		</table>
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	</div>		</div>
	<div class="pdbe-citations 7amb" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 7amb" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Green Fluorescent Protein 3D structures\|Green Fluorescent Protein 3D structures]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 19:29, 19 October 2022

OCA — Wed, 19 Oct 2022 19:29:00 GMT

←Older revision		Revision as of 19:29, 19 October 2022
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	==Crystal structure of rsFolder2 in its fluorescent on-state==		==Crystal structure of rsFolder2 in its fluorescent on-state==
-	<StructureSection load='7amb' size='340' side='right'caption='[[7amb]]' scene=''>	+	<StructureSection load='7amb' size='340' side='right'caption='[[7amb]], [[Resolution\|resolution]] 1.63Å' 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=7AMB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AMB FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[7amb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Aequorea_victoria Aequorea victoria]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AMB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AMB 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=7amb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7amb OCA], [https://pdbe.org/7amb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7amb RCSB], [https://www.ebi.ac.uk/pdbsum/7amb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7amb ProSAT]</span></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PIA:[(4Z)-2-[(1S)-1-AMINOETHYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETIC+ACID'>PIA</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=7amb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7amb OCA], [https://pdbe.org/7amb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7amb RCSB], [https://www.ebi.ac.uk/pdbsum/7amb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7amb ProSAT]</span></td></tr>
	</table>		</table>
		+	== Function ==
		+	[https://www.uniprot.org/uniprot/GFP_AEQVI GFP_AEQVI] Energy-transfer acceptor. Its role is to transduce the blue chemiluminescence of the protein aequorin into green fluorescent light by energy transfer. Fluoresces in vivo upon receiving energy from the Ca(2+)-activated photoprotein aequorin.
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Reversibly photoswitchable fluorescent proteins are essential markers for advanced biological imaging, and optimization of their photophysical properties underlies improved performance and novel applications. Here we establish a link between photoswitching contrast, one of the key parameters that dictate the achievable resolution in nanoscopy applications, and chromophore conformation in the non-fluorescent state of rsEGFP2, a widely employed label in REversible Saturable OpticaL Fluorescence Transitions (RESOLFT) microscopy. Upon illumination, the cis chromophore of rsEGFP2 isomerizes to two distinct off-state conformations, trans1 and trans2, located on either side of the V151 side chain. Reducing or enlarging the side chain at this position (V151A and V151L variants) leads to single off-state conformations that exhibit higher and lower switching contrast, respectively, compared to the rsEGFP2 parent. The combination of structural information obtained by serial femtosecond crystallography with high-level quantum chemical calculations and with spectroscopic and photophysical data determined in vitro suggests that the changes in switching contrast arise from blue- and red-shifts of the absorption bands associated to trans1 and trans2, respectively. Thus, due to elimination of trans2, the V151A variants of rsEGFP2 and its superfolding variant rsFolder2 display a more than two-fold higher switching contrast than their respective parent proteins, both in vitro and in E. coli cells. The application of the rsFolder2-V151A variant is demonstrated in RESOLFT nanoscopy. Our study rationalizes the connection between structural and photophysical chromophore properties and suggests a means to rationally improve fluorescent proteins for nanoscopy applications.
		+
		+	Rational Control of Off-State Heterogeneity in a Photoswitchable Fluorescent Protein Provides Switching Contrast Enhancement.,Adam V, Hadjidemetriou K, Jensen N, Shoeman RL, Woodhouse J, Aquila A, Banneville AS, Barends TRM, Bezchastnov V, Boutet S, Byrdin M, Cammarata M, Carbajo S, Eleni Christou N, Coquelle N, De la Mora E, El Khatib M, Moreno Chicano T, Bruce Doak R, Fieschi F, Foucar L, Glushonkov O, Gorel A, Grunbein ML, Hilpert M, Hunter M, Kloos M, Koglin JE, Lane TJ, Liang M, Mantovanelli A, Nass K, Nass Kovacs G, Owada S, Roome CM, Schiro G, Seaberg M, Stricker M, Thepaut M, Tono K, Ueda K, Uriarte LM, You D, Zala N, Domratcheva T, Jakobs S, Sliwa M, Schlichting I, Colletier JP, Bourgeois D, Weik M Chemphyschem. 2022 Aug 12:e202200192. doi: 10.1002/cphc.202200192. PMID:35959919<ref>PMID:35959919</ref>
		+
		+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>
		+	<div class="pdbe-citations 7amb" style="background-color:#fffaf0;"></div>
		+	== References ==
		+	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Aequorea victoria]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
	[[Category: Colletier J-P]]		[[Category: Colletier J-P]]
	[[Category: El Khatib M]]		[[Category: El Khatib M]]
	[[Category: Moreno-Chicano T]]		[[Category: Moreno-Chicano T]]

OCA at 04:45, 25 August 2022

OCA — Thu, 25 Aug 2022 04:45:55 GMT

←Older revision		Revision as of 04:45, 25 August 2022
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-	'''Unreleased structure'''

-	~~The entry~~ 7amb is ~~ON HOLD until Paper Publication~~	+	==Crystal structure of rsFolder2 in its fluorescent on-state==
-		+	<StructureSection load='7amb' size='340' side='right'caption='[[7amb]]' scene=''>
-	~~Authors~~:	+	== Structural highlights ==
-		+	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AMB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AMB 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=7amb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7amb OCA], [https://pdbe.org/7amb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7amb RCSB], [https://www.ebi.ac.uk/pdbsum/7amb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7amb ProSAT]</span></td></tr>
-	[[Category: ~~Unreleased Structures~~]]	+	</table>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Large Structures]]
		+	[[Category: Colletier J-P]]
		+	[[Category: El Khatib M]]
		+	[[Category: Moreno-Chicano T]]

OCA at 06:12, 11 November 2020

OCA — Wed, 11 Nov 2020 06:12:02 GMT

←Older revision		Revision as of 06:12, 11 November 2020
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	'''Unreleased structure'''		'''Unreleased structure'''

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

	Authors:		Authors:

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

OCA — Wed, 14 Oct 2020 04:06:25 GMT

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

←Older revision

Revision as of 04:06, 14 October 2020

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

OCA — Wed, 14 Oct 2020 04:06:24 GMT

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

New page

'''Unreleased structure'''

The entry 7amb is ON HOLD

Authors:

Description:
[[Category: Unreleased Structures]]