5ev8

From Proteopedia

(Difference between revisions)

Revision as of 07:46, 29 April 2020

Crystal structure of the metallo-beta-lactamase IMP-1 in complex with the bisthiazolidine inhibitor D-CS319

Structural highlights

5ev8 is a 4 chain structure with sequence from "bacillus_marcescens"_(bizio_1823)_trevisan_in_de_toni_and_trevisan_1889 "bacillus marcescens" (bizio 1823) trevisan in de toni and trevisan 1889. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , ,
Activity:	Beta-lactamase, with EC number 3.5.2.6
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[BLAB_SERMA] Confers resistance to imipenem and broad-spectrum beta-lactams. Also hydrolyzes carbapenems.

Publication Abstract from PubMed

Metallo-beta-lactamases (MBLs) hydrolyze almost all beta-lactam antibiotics and are unaffected by clinically available beta-lactamase inhibitors (betaLIs). Active-site architecture divides MBLs into three classes (B1, B2, and B3), complicating development of betaLIs effective against all enzymes. Bisthiazolidines (BTZs) are carboxylate-containing, bicyclic compounds, considered as penicillin analogs with an additional free thiol. Here, we show both l- and d-BTZ enantiomers are micromolar competitive betaLIs of all MBL classes in vitro, with Kis of 6-15 microM or 36-84 microM for subclass B1 MBLs (IMP-1 and BcII, respectively), and 10-12 microM for the B3 enzyme L1. Against the B2 MBL Sfh-I, the l-BTZ enantiomers exhibit 100-fold lower Kis (0.26-0.36 microM) than d-BTZs (26-29 microM). Importantly, cell-based time-kill assays show BTZs restore beta-lactam susceptibility of Escherichia coli-producing MBLs (IMP-1, Sfh-1, BcII, and GOB-18) and, significantly, an extensively drug-resistant Stenotrophomonas maltophilia clinical isolate expressing L1. BTZs therefore inhibit the full range of MBLs and potentiate beta-lactam activity against producer pathogens. X-ray crystal structures reveal insights into diverse BTZ binding modes, varying with orientation of the carboxylate and thiol moieties. BTZs bind the di-zinc centers of B1 (IMP-1; BcII) and B3 (L1) MBLs via the free thiol, but orient differently depending upon stereochemistry. In contrast, the l-BTZ carboxylate dominates interactions with the monozinc B2 MBL Sfh-I, with the thiol uninvolved. d-BTZ complexes most closely resemble beta-lactam binding to B1 MBLs, but feature an unprecedented disruption of the D120-zinc interaction. Cross-class MBL inhibition therefore arises from the unexpected versatility of BTZ binding.

Cross-class metallo-beta-lactamase inhibition by bisthiazolidines reveals multiple binding modes.,Hinchliffe P, Gonzalez MM, Mojica MF, Gonzalez JM, Castillo V, Saiz C, Kosmopoulou M, Tooke CL, Llarrull LI, Mahler G, Bonomo RA, Vila AJ, Spencer J Proc Natl Acad Sci U S A. 2016 Jun 28;113(26):E3745-54. doi:, 10.1073/pnas.1601368113. Epub 2016 Jun 14. PMID:27303030^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Hinchliffe P, Gonzalez MM, Mojica MF, Gonzalez JM, Castillo V, Saiz C, Kosmopoulou M, Tooke CL, Llarrull LI, Mahler G, Bonomo RA, Vila AJ, Spencer J. Cross-class metallo-beta-lactamase inhibition by bisthiazolidines reveals multiple binding modes. Proc Natl Acad Sci U S A. 2016 Jun 28;113(26):E3745-54. doi:, 10.1073/pnas.1601368113. Epub 2016 Jun 14. PMID:27303030 doi:http://dx.doi.org/10.1073/pnas.1601368113

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5ev8"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the metallo-beta-lactamase IMP-1 in complex with the bisthiazolidine inhibitor D-CS319==
-<StructureSection load='5ev8' size='340' side='right' caption='[[5ev8]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
+<StructureSection load='5ev8' size='340' side='right'caption='[[5ev8]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5ev8]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5EV8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5EV8 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5ev8]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_marcescens"_(bizio_1823)_trevisan_in_de_toni_and_trevisan_1889 "bacillus marcescens" (bizio 1823) trevisan in de toni and trevisan 1889]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5EV8 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5EV8 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3R9:(3S,5S,7AR)-5-(SULFANYLMETHYL)TETRAHYDRO[1,3]THIAZOLO[4,3-B][1,3]THIAZOLE-3-CARBOXYLIC+ACID'>3R9</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3R9:(3S,5S,7AR)-5-(SULFANYLMETHYL)TETRAHYDRO[1,3]THIAZOLO[4,3-B][1,3]THIAZOLE-3-CARBOXYLIC+ACID'>3R9</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ev8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ev8 OCA], [http://pdbe.org/5ev8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ev8 RCSB], [http://www.ebi.ac.uk/pdbsum/5ev8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ev8 ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5ev8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ev8 OCA], [http://pdbe.org/5ev8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ev8 RCSB], [http://www.ebi.ac.uk/pdbsum/5ev8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ev8 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 19: @@
 </div>
 <div class="pdbe-citations 5ev8" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Beta-lactamase 3D structures|Beta-lactamase 3D structures]]
 == References ==
 <references/>
@@ Line 24: / Line 27: @@
 </StructureSection>
 [[Category: Beta-lactamase]]
+[[Category: Large Structures]]
 [[Category: Hinchliffe, P]]
 [[Category: Spencer, J]]

5ev8

From Proteopedia

Revision as of 07:46, 29 April 2020

Crystal structure of the metallo-beta-lactamase IMP-1 in complex with the bisthiazolidine inhibitor D-CS319

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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