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| | <StructureSection load='6rmf' size='340' side='right'caption='[[6rmf]], [[Resolution|resolution]] 1.51Å' scene=''> | | <StructureSection load='6rmf' size='340' side='right'caption='[[6rmf]], [[Resolution|resolution]] 1.51Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6rmf]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_pneumoniae"_(schroeter_1886)_flugge_1886 "bacillus pneumoniae" (schroeter 1886) flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6RMF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6RMF FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6rmf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6RMF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6RMF FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K9B:(4~{R})-4-[2-[4-(2-azanylethylamino)cyclohexyl]ethanoylamino]-3,3-bis(oxidanyl)-2-oxa-3-boranuidabicyclo[4.4.0]deca-1(10),6,8-triene-10-carboxylic+acid'>K9B</scene>, <scene name='pdbligand=K9K:5-[[4-(2-azanylethylamino)cyclohexyl]methyl]-3-oxidanyl-2,4-dioxa-6-aza-3$l^{4}-boratricyclo[7.4.0.0^{3,7}]trideca-1(13),5,9,11-tetraene-13-carboxylic+acid'>K9K</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.51Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">blaNDM-1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=573 "Bacillus pneumoniae" (Schroeter 1886) Flugge 1886])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K9B:(4~{R})-4-[2-[4-(2-azanylethylamino)cyclohexyl]ethanoylamino]-3,3-bis(oxidanyl)-2-oxa-3-boranuidabicyclo[4.4.0]deca-1(10),6,8-triene-10-carboxylic+acid'>K9B</scene>, <scene name='pdbligand=K9K:(10aR)-2-(((1r,4R)-4-((2-aminoethyl)amino)cyclohexyl)methyl)-6-carboxy-4-hydroxy-4,10a-dihydro-10H-benzo[5,6][1,2]oxaborinino[2,3-b][1,4,2]oxazaborol-4-uide'>K9K</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-lactamase Beta-lactamase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.2.6 3.5.2.6] </span></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=6rmf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6rmf OCA], [https://pdbe.org/6rmf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6rmf RCSB], [https://www.ebi.ac.uk/pdbsum/6rmf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6rmf 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=6rmf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6rmf OCA], [http://pdbe.org/6rmf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6rmf RCSB], [http://www.ebi.ac.uk/pdbsum/6rmf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6rmf ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/BLAN1_KLEPN BLAN1_KLEPN]] Confers resistance to many beta-lactam antibiotics, including some carbapenems. Does not confer resistance to the polymixin colistin or the fluoroquinolone ciprofloxacin. | + | [https://www.uniprot.org/uniprot/BLAN1_KLEPN BLAN1_KLEPN] Confers resistance to many beta-lactam antibiotics, including some carbapenems. Does not confer resistance to the polymixin colistin or the fluoroquinolone ciprofloxacin. |
| | <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: Beta-lactamase]] | + | [[Category: Klebsiella pneumoniae]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Brem, J]] | + | [[Category: Brem J]] |
| - | [[Category: Hinchliffe, P]] | + | [[Category: Hinchliffe P]] |
| - | [[Category: Schofield, C J]] | + | [[Category: Schofield CJ]] |
| - | [[Category: Spencer, J]] | + | [[Category: Spencer J]] |
| - | [[Category: Antibiotic resistance]]
| + | |
| - | [[Category: Antimicrobial protein]]
| + | |
| - | [[Category: Inhibitor]]
| + | |
| - | [[Category: Metallo-beta-lactamase]]
| + | |
| Structural highlights
Function
BLAN1_KLEPN Confers resistance to many beta-lactam antibiotics, including some carbapenems. Does not confer resistance to the polymixin colistin or the fluoroquinolone ciprofloxacin.
Publication Abstract from PubMed
The bicyclic boronate VNRX-5133 (taniborbactam) is a new type of beta-lactamase inhibitor in clinical development. We report that VNRX-5133 inhibits serine-beta-lactamases (SBLs) and some clinically important metallo-beta-lactamases (MBLs), including NDM-1 and VIM-1/2. VNRX-5133 activity against IMP-1 and tested B2/B3 MBLs was lower/not observed. Crystallography reveals how VNRX-5133 binds to the class D SBL OXA-10 and MBL NDM-1. The crystallographic results highlight the ability of bicyclic boronates to inhibit SBLs and MBLs via binding of a tetrahedral (sp(3)) boron species. The structures imply conserved binding of the bicyclic core with SBLs/MBLs. With NDM-1, by crystallography, we observed an unanticipated VNRX-5133 binding mode involving cyclization of its acylamino oxygen onto the boron of the bicyclic core. Different side-chain binding modes for bicyclic boronates for SBLs and MBLs imply scope for side-chain optimization. The results further support the "high-energy-intermediate" analogue approach for broad-spectrum beta-lactamase inhibitor development and highlight the ability of boron inhibitors to interchange between different hybridization states/binding modes.
Bicyclic Boronate VNRX-5133 Inhibits Metallo- and Serine-beta-Lactamases.,Krajnc A, Brem J, Hinchliffe P, Calvopina K, Panduwawala TD, Lang PA, Kamps JJAG, Tyrrell JM, Widlake E, Saward BG, Walsh TR, Spencer J, Schofield CJ J Med Chem. 2019 Sep 26;62(18):8544-8556. doi: 10.1021/acs.jmedchem.9b00911. Epub, 2019 Sep 16. PMID:31454231[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Krajnc A, Brem J, Hinchliffe P, Calvopina K, Panduwawala TD, Lang PA, Kamps JJAG, Tyrrell JM, Widlake E, Saward BG, Walsh TR, Spencer J, Schofield CJ. Bicyclic Boronate VNRX-5133 Inhibits Metallo- and Serine-beta-Lactamases. J Med Chem. 2019 Sep 26;62(18):8544-8556. doi: 10.1021/acs.jmedchem.9b00911. Epub, 2019 Sep 16. PMID:31454231 doi:http://dx.doi.org/10.1021/acs.jmedchem.9b00911
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