4p72: Difference between revisions
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==PheRS in complex with compound 2a== | ==PheRS in complex with compound 2a== | ||
<StructureSection load='4p72' size='340' side='right' caption='[[4p72]], [[Resolution|resolution]] 2.62Å' scene=''> | <StructureSection load='4p72' size='340' side='right' caption='[[4p72]], [[Resolution|resolution]] 2.62Å' scene=''> | ||
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4p71|4p71]], [[4p73|4p73]], [[4p74|4p74]], [[4p75|4p75]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4p71|4p71]], [[4p73|4p73]], [[4p74|4p74]], [[4p75|4p75]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phenylalanine--tRNA_ligase Phenylalanine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.20 6.1.1.20] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phenylalanine--tRNA_ligase Phenylalanine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.20 6.1.1.20] </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=4p72 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p72 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4p72 RCSB], [http://www.ebi.ac.uk/pdbsum/4p72 PDBsum]</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=4p72 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p72 OCA], [http://pdbe.org/4p72 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4p72 RCSB], [http://www.ebi.ac.uk/pdbsum/4p72 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4p72 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 4p72" style="background-color:#fffaf0;"></div> | |||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 18:16, 11 August 2016
PheRS in complex with compound 2aPheRS in complex with compound 2a
Structural highlights
Publication Abstract from PubMedThe antimicrobial activity of phenyl-thiazolylurea-sulfonamides against S. aureus PheRS are dependent upon phenylalanine levels in the extracellular fluids. Inhibitor efficacy in animal models of infection is substantially diminished by dietary phenylalanine intake, thereby reducing the perceived clinical utility of this inhibitor class. The search for novel antibacterial compounds against Gram-negative pathogens led to a re-evaluation of this phenomenon, which is shown here to be unique to S. aureus. Inhibition of macromolecular syntheses and characterization of novel resistance mutations in Escherichia coli demonstrate that antimicrobial activity of phenyl-thiazolylurea-sulfonamides is mediated by PheRS inhibition, validating this enzyme as a viable drug discovery target for Gram-negative pathogens. A search for novel inhibitors of PheRS yielded three novel chemical starting points. NMR studies were used to confirm direct target engagement for phenylalanine-competitive hits. The crystallographic structure of P. aeruginosa PheRS defined the binding modes of these hits, and revealed an auxiliary hydrophobic pocket that is positioned adjacent to the phenylalanine binding site. Three viable inhibitor-resistant mutants were mapped to this pocket, suggesting that this region is a potential liability for drug discovery. The Role of a Novel Auxiliary Pocket in Bacterial Phenylalanyl-tRNA Synthetase Druggability.,Abibi A, Ferguson AD, Fleming PR, Gao N, Hajec LI, Hu J, Laganas VA, McKinney DC, McLeod SM, Prince DB, Shapiro AB, Buurman ET J Biol Chem. 2014 Jun 16. pii: jbc.M114.574061. PMID:24936059[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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