View source for 6ubo


==Fluorogen Activating Protein Dib1==
<StructureSection load='6ubo' size='340' side='right'caption='[[6ubo]], [[Resolution|resolution]] 1.58&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ubo]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6UBO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6UBO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.58&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=P4K:polyethylene+glycol'>P4K</scene>, <scene name='pdbligand=Q3J:12-(diethylamino)-2,2-bis(fluoranyl)-4,5-dimethyl-5-aza-3-azonia-2-boranuidatricyclo[7.4.0.0^{3,7}]trideca-1(13),3,7,9,11-pentaen-6-one'>Q3J</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=6ubo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ubo OCA], [https://pdbe.org/6ubo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ubo RCSB], [https://www.ebi.ac.uk/pdbsum/6ubo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ubo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BLC_ECOLI BLC_ECOLI] Involved in the storage or transport of lipids necessary for membrane maintenance under stressful conditions. Displays a binding preference for lysophospholipids.<ref>PMID:15044022</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Super-resolution fluorescent imaging in living cells remains technically challenging, largely due to the photodecomposition of fluorescent tags. The recently suggested protein-PAINT is the only super-resolution technique available for prolonged imaging of proteins in living cells. It is realized with complexes of fluorogen-activating proteins, expressed as fusions, and solvatochromic synthetic dyes. Once photobleached, the dye in the complex is replaced with a fresh fluorogen available in the sample. With suitable kinetics, this replacement creates fluorescence blinking required for attaining super-resolution and overcomes photobleaching associated with the loss of an irreplaceable fluorophore. Here we report on the rational design of two protein-PAINT tags based on the 1.58 A crystal structure of the DiB1:M739 complex, an improved green-emitting DiB3/F74V:M739 and a new orange-emitting DiB3/F53L:M739. They outperform previously reported DiB-based tags to become best in class biomarkers for protein-PAINT. The new tags advance protein-PAINT from the proof-of-concept to a reliable tool suitable for prolonged super-resolution imaging of intracellular proteins in fixed and living cells and two-color PAINT-like nanoscopy with a single fluorogen.

Structure-Based Rational Design of Two Enhanced Bacterial Lipocalin Blc Tags for Protein-PAINT Super-resolution Microscopy.,Muslinkina L, Gavrikov AS, Bozhanova NG, Mishin AS, Baranov MS, Meiler J, Pletneva NV, Pletnev VZ, Pletnev S ACS Chem Biol. 2020 Sep 18;15(9):2456-2465. doi: 10.1021/acschembio.0c00440. Epub, 2020 Sep 8. PMID:32809793<ref>PMID:32809793</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6ubo" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Muslinkina L]]
[[Category: Pletnev S]]
[[Category: Pletnev VZ]]
[[Category: Pletneva N]]