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| | <StructureSection load='4pfe' size='340' side='right'caption='[[4pfe]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='4pfe' size='340' side='right'caption='[[4pfe]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4pfe]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Aeqvi Aeqvi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4PFE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4PFE FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4pfe]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Aequorea_victoria Aequorea victoria] and [https://en.wikipedia.org/wiki/Vicugna_pacos Vicugna pacos]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4PFE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4PFE FirstGlance]. <br> |
| - | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CRO:{2-[(1R,2R)-1-AMINO-2-HYDROXYPROPYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL}ACETIC+ACID'>CRO</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CRO:{2-[(1R,2R)-1-AMINO-2-HYDROXYPROPYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL}ACETIC+ACID'>CRO</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GFP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6100 AEQVI])</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=4pfe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4pfe OCA], [https://pdbe.org/4pfe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4pfe RCSB], [https://www.ebi.ac.uk/pdbsum/4pfe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4pfe ProSAT]</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=4pfe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4pfe OCA], [http://pdbe.org/4pfe PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4pfe RCSB], [http://www.ebi.ac.uk/pdbsum/4pfe PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4pfe ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://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. | + | [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;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | | | |
| | ==See Also== | | ==See Also== |
| - | *[[Green Fluorescent Protein|Green Fluorescent Protein]] | + | *[[Green Fluorescent Protein 3D structures|Green Fluorescent Protein 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Aeqvi]] | + | [[Category: Aequorea victoria]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Chen, S L]] | + | [[Category: Vicugna pacos]] |
| - | [[Category: Jauch, R]] | + | [[Category: Chen SL]] |
| - | [[Category: Beta barrel]] | + | [[Category: Jauch R]] |
| - | [[Category: Fluorescent protein]]
| + | |
| - | [[Category: Fusion protein]]
| + | |
| - | [[Category: Homodimer]]
| + | |
| - | [[Category: Immune system]]
| + | |
| Structural highlights
Function
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.
Publication Abstract from PubMed
Fluorescent proteins are transformative tools; thus, any brightness increase is a welcome improvement. We invented the "vGFP strategy" based on structural analysis of GFP bound to a single-domain antibody, predicting tunable dimerization, enhanced brightness (ca. 50 %), and improved pH resistance. We verified all of these predictions using biochemistry, crystallography, and single-molecule studies. We applied the vsfGFP proteins in three diverse scenarios: single-step immunofluorescence in vitro (3x brighter due to dimerization); expression in bacteria and human cells in vivo (1.5x brighter); and protein fusions showing better pH resistance in human cells in vivo. The vGFP strategy thus allows upgrading of existing applications, is applicable to other fluorescent proteins, and suggests a method for tuning dimerization of arbitrary proteins and optimizing protein properties in general.
Rational Structure-Based Design of Bright GFP-Based Complexes with Tunable Dimerization.,Eshaghi M, Sun G, Gruter A, Lim CL, Chee YC, Jung G, Jauch R, Wohland T, Chen SL Angew Chem Int Ed Engl. 2015 Nov 16;54(47):13952-6. doi: 10.1002/anie.201506686. , Epub 2015 Oct 8. PMID:26447926[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Eshaghi M, Sun G, Gruter A, Lim CL, Chee YC, Jung G, Jauch R, Wohland T, Chen SL. Rational Structure-Based Design of Bright GFP-Based Complexes with Tunable Dimerization. Angew Chem Int Ed Engl. 2015 Nov 16;54(47):13952-6. doi: 10.1002/anie.201506686. , Epub 2015 Oct 8. PMID:26447926 doi:http://dx.doi.org/10.1002/anie.201506686
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