8bgl
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of the dimeric rsCherryRev1.4== | |
| + | <StructureSection load='8bgl' size='340' side='right'caption='[[8bgl]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[8bgl]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Discosoma_sp. Discosoma sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8BGL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8BGL FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1PE:PENTAETHYLENE+GLYCOL'>1PE</scene>, <scene name='pdbligand=ABA:ALPHA-AMINOBUTYRIC+ACID'>ABA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=Q2K:2-[2-(3-methylsulfanylpropanimidoyl)-4,5-bis(oxidanylidene)imidazol-1-yl]ethanoic+acid'>Q2K</scene>, <scene name='pdbligand=QYX:2-[4-[(4-hydroxyphenyl)methyl]-2-(3-methylsulfanylpropanimidoyl)-5-oxidanylidene-imidazol-1-ium-1-yl]ethanoic+acid'>QYX</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=8bgl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8bgl OCA], [https://pdbe.org/8bgl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8bgl RCSB], [https://www.ebi.ac.uk/pdbsum/8bgl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8bgl ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RFP_DISSP RFP_DISSP] Thought to play a role in photoprotection of the coral's resident symbiont microalgae's photosystems from photoinhibition caused by high light levels found near the surface of coral reefs. In deeper water, the fluorescence may be to convert blue light into longer wavelengths more suitable for use in photosynthesis by the microalgal symbionts.<ref>PMID:10504696</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | rsCherryRev1.4 has been reported as one of the reversibly photoswitchable variants of mCherry, and is an improved version with a faster off-switching speed and lower switching fatigue at high light intensities than its precursor rsCherryRev. However, rsCherryRev1.4 still has some limitations such as a tendency to dimerize as well as complex photophysical properties. Here, the crystal structure of rsCherryRev1.4 was determined at a resolution of 2 A and it was discovered that it forms a dimer that shows disulfide bonding between the protomers. Mutagenesis, gel electrophoresis and size-exclusion chromatography strongly implicate Cys24 in this process. Replacing Cys24 in rsCherryRev1.4 resulted in a much lower tendency towards dimerization, while introducing Cys24 into mCherry correspondingly increased its dimerization. In principle, this finding opens the possibility of developing redox sensors based on controlled dimerization via disulfide cross-linking in fluorescent proteins, even though the actual application of engineering such sensors still requires additional research. | ||
| - | + | An unusual disulfide-linked dimerization in the fluorescent protein rsCherryRev1.4.,Bui TYH, Dedecker P, Van Meervelt L Acta Crystallogr F Struct Biol Commun. 2023 Feb 1;79(Pt 2):38-44. doi: , 10.1107/S2053230X23000572. Epub 2023 Feb 2. PMID:36748340<ref>PMID:36748340</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 8bgl" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Discosoma sp]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Bui TYH]] | ||
| + | [[Category: Van Meervelt L]] | ||
Revision as of 10:26, 15 February 2023
Structure of the dimeric rsCherryRev1.4
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