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| | <StructureSection load='4tvy' size='340' side='right'caption='[[4tvy]], [[Resolution|resolution]] 2.15Å' scene=''> | | <StructureSection load='4tvy' size='340' side='right'caption='[[4tvy]], [[Resolution|resolution]] 2.15Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4tvy]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4TVY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4TVY FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4tvy]] 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=4TVY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4TVY FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=37R:5-(3,7-DIHYDROXY-10H-PHENOXAZIN-2-YL)PENTANAMIDE'>37R</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=37R:5-(3,7-DIHYDROXY-10H-PHENOXAZIN-2-YL)PENTANAMIDE'>37R</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4tvw|4tvw]], [[3a7r|3a7r]]</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=4tvy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4tvy OCA], [https://pdbe.org/4tvy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4tvy RCSB], [https://www.ebi.ac.uk/pdbsum/4tvy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4tvy ProSAT]</span></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lplA, yjjF, b4386, JW4349 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Transferase Transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.63 2.7.7.63] </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=4tvy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4tvy OCA], [http://pdbe.org/4tvy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4tvy RCSB], [http://www.ebi.ac.uk/pdbsum/4tvy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4tvy ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/LPLA_ECOLI LPLA_ECOLI]] Catalyzes both the ATP-dependent activation of exogenously supplied lipoate to lipoyl-AMP and the transfer of the activated lipoyl onto the lipoyl domains of lipoate-dependent enzymes. Is also able to catalyze very poorly the transfer of lipoyl and octanoyl moiety from their acyl carrier protein.<ref>PMID:7639702</ref> | + | [https://www.uniprot.org/uniprot/LPLA_ECOLI LPLA_ECOLI] Catalyzes both the ATP-dependent activation of exogenously supplied lipoate to lipoyl-AMP and the transfer of the activated lipoyl onto the lipoyl domains of lipoate-dependent enzymes. Is also able to catalyze very poorly the transfer of lipoyl and octanoyl moiety from their acyl carrier protein.<ref>PMID:7639702</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Ecoli]] | + | [[Category: Escherichia coli K-12]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Transferase]]
| + | [[Category: Drennan CL]] |
| - | [[Category: Drennan, C L]] | + | [[Category: Goldman PJ]] |
| - | [[Category: Goldman, P J]] | + | |
| - | [[Category: Computational enzyme design]]
| + | |
| - | [[Category: E. coli lpla]]
| + | |
| Structural highlights
Function
LPLA_ECOLI Catalyzes both the ATP-dependent activation of exogenously supplied lipoate to lipoyl-AMP and the transfer of the activated lipoyl onto the lipoyl domains of lipoate-dependent enzymes. Is also able to catalyze very poorly the transfer of lipoyl and octanoyl moiety from their acyl carrier protein.[1]
Publication Abstract from PubMed
Chemical fluorophores offer tremendous size and photophysical advantages over fluorescent proteins but are much more challenging to target to specific cellular proteins. Here, we used Rosetta-based computation to design a fluorophore ligase that accepts the red dye resorufin, starting from Escherichia coli lipoic acid ligase. X-ray crystallography showed that the design closely matched the experimental structure. Resorufin ligase catalyzed the site-specific and covalent attachment of resorufin to various cellular proteins genetically fused to a 13-aa recognition peptide in multiple mammalian cell lines and in primary cultured neurons. We used resorufin ligase to perform superresolution imaging of the intermediate filament protein vimentin by stimulated emission depletion and electron microscopies. This work illustrates the power of Rosetta for major redesign of enzyme specificity and introduces a tool for minimally invasive, highly specific imaging of cellular proteins by both conventional and superresolution microscopies.
Computational design of a red fluorophore ligase for site-specific protein labeling in living cells.,Liu DS, Nivon LG, Richter F, Goldman PJ, Deerinck TJ, Yao JZ, Richardson D, Phipps WS, Ye AZ, Ellisman MH, Drennan CL, Baker D, Ting AY Proc Natl Acad Sci U S A. 2014 Oct 13. pii: 201404736. PMID:25313043[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Green DE, Morris TW, Green J, Cronan JE Jr, Guest JR. Purification and properties of the lipoate protein ligase of Escherichia coli. Biochem J. 1995 Aug 1;309 ( Pt 3):853-62. PMID:7639702
- ↑ Liu DS, Nivon LG, Richter F, Goldman PJ, Deerinck TJ, Yao JZ, Richardson D, Phipps WS, Ye AZ, Ellisman MH, Drennan CL, Baker D, Ting AY. Computational design of a red fluorophore ligase for site-specific protein labeling in living cells. Proc Natl Acad Sci U S A. 2014 Oct 13. pii: 201404736. PMID:25313043 doi:http://dx.doi.org/10.1073/pnas.1404736111
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