6TMA

VIM-2_1dj- Triazole inhibitors with promising inhibitor effects against antibiotic resistance metallo-beta-lactamases


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.158 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structural studies of triazole inhibitors with promising inhibitor effects against antibiotic resistance metallo-beta-lactamases.

Muhammad, Z.Skagseth, S.Boomgaren, M.Akhter, S.Frohlich, C.Ismael, A.Christopeit, T.Bayer, A.Leiros, H.S.

(2020) Bioorg Med Chem 28: 115598-115598

  • DOI: https://doi.org/10.1016/j.bmc.2020.115598
  • Primary Citation of Related Structures:  
    6TM9, 6TMA, 6TMB, 6TMC

  • PubMed Abstract: 

    Metallo-β-lactamases (MBLs) are an emerging cause of bacterial antibiotic resistance by hydrolysing all classes of β-lactams except monobactams, and the MBLs are not inhibited by clinically available serine-β-lactamase inhibitors. Two of the most commonly encountered MBLs in clinical isolates worldwide - the New Delhi metallo-β-lactamase (NDM-1) and the Verona integron-encoded metallo-β-lactamase (VIM-2) - are included in this study. A series of several NH-1,2,3-triazoles was prepared by a three-step protocol utilizing Banert cascade reaction as the key step. The inhibitor properties were evaluated in biochemical assays against the MBLs VIM-2, NDM-1 and GIM-1, and VIM-2 showed IC 50 values down to nanomolar range. High-resolution crystal structures of four inhibitors in complex with VIM-2 revealed hydrogen bonds from the triazole inhibitors to Arg228 and to the backbone of Ala231 or Asn233, along with hydrophobic interactions to Trp87, Phe61 and Tyr67. The inhibitors show reduced MIC in synergy assays with Pseudomonas aeruginosa and Escherichia coli strains harbouring VIM enzymes. The obtained results will be useful for further structural guided design of MBL inhibitors.


  • Organizational Affiliation

    Department of Chemistry, Faculty of Science and Technology, UiT The Arctic University of Norway, N-9037 Tromsø, Norway.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-lactamase class B VIM-2
A, B
266Pseudomonas aeruginosaMutation(s): 0 
Gene Names: blaVIM-2bla vim-2bla-VIM-2blasVIM-2blaVIM2blmVIM-2PAERUG_P32_London_17_VIM_2_10_11_06255
UniProt
Find proteins for Q9K2N0 (Pseudomonas aeruginosa)
Explore Q9K2N0 
Go to UniProtKB:  Q9K2N0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9K2N0
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
9O8 (Subject of Investigation/LOI)
Query on 9O8

Download Ideal Coordinates CCD File 
I [auth A],
Q [auth B]
[5-(phenylsulfonylaminomethyl)-2~{H}-1,2,3-triazol-4-yl]methyl ethanoate
C12 H14 N4 O4 S
GXBLONJHQVMAJA-UHFFFAOYSA-N
IOD
Query on IOD

Download Ideal Coordinates CCD File 
J [auth A],
R [auth B]
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
K [auth B]
L [auth B]
C [auth A],
D [auth A],
E [auth A],
K [auth B],
L [auth B],
M [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
G [auth A],
H [auth A],
O [auth B],
P [auth B]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
OH
Query on OH

Download Ideal Coordinates CCD File 
F [auth A],
N [auth B]
HYDROXIDE ION
H O
XLYOFNOQVPJJNP-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.158 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.275α = 90
b = 79.269β = 130.35
c = 67.688γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Research Council of NorwayNorway273332/2018

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-02
    Type: Initial release
  • Version 1.1: 2021-02-10
    Changes: Database references, Structure summary
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description