6RTN

Crystal structure of OXA-10 with VNRX-5133


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.17 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.196 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Bicyclic Boronate VNRX-5133 Inhibits Metallo- and Serine-beta-Lactamases.

Krajnc, A.Brem, J.Hinchliffe, P.Calvopina, K.Panduwawala, T.D.Lang, P.A.Kamps, J.J.A.G.Tyrrell, J.M.Widlake, E.Saward, B.G.Walsh, T.R.Spencer, J.Schofield, C.J.

(2019) J Med Chem 62: 8544-8556

  • DOI: https://doi.org/10.1021/acs.jmedchem.9b00911
  • Primary Citation of Related Structures:  
    6RMF, 6RTN

  • PubMed Abstract: 

    The bicyclic boronate VNRX-5133 (taniborbactam) is a new type of β-lactamase inhibitor in clinical development. We report that VNRX-5133 inhibits serine-β-lactamases (SBLs) and some clinically important metallo-β-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 β-lactamase inhibitor development and highlight the ability of boron inhibitors to interchange between different hybridization states/binding modes.


  • Organizational Affiliation

    Chemistry Research Laboratory, Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-lactamase OXA-10
A, B
247Pseudomonas aeruginosaMutation(s): 0 
Gene Names: blaoxa10pse2
EC: 3.5.2.6
UniProt
Find proteins for P14489 (Pseudomonas aeruginosa)
Explore P14489 
Go to UniProtKB:  P14489
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14489
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
KJK (Subject of Investigation/LOI)
Query on KJK

Download Ideal Coordinates CCD File 
H [auth A],
P [auth B]
(3~{R})-3-[2-[4-(2-azanylethylamino)cyclohexyl]ethanoylamino]-2-oxidanyl-3,4-dihydro-1,2-benzoxaborinine-8-carboxylic acid
C19 H28 B N3 O5
PFZUWUXKQPRWAL-NOLJZWGESA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
G [auth A]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
I [auth B],
J [auth B],
K [auth B],
L [auth B],
M [auth B],
N [auth B],
O [auth B]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
KCX
Query on KCX
A, B
L-PEPTIDE LINKINGC7 H14 N2 O4LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.17 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.879α = 90
b = 95.62β = 90
c = 126.269γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2019-09-11
    Type: Initial release
  • Version 1.1: 2019-10-09
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description