8R2K | pdb_00008r2k

Human Carbonic Anhydrase II in complex with 4-((2-oxo-5-(3,4,5-trimethoxyphenyl)-2,5-dihydrofuran-3-yl)amino)benzenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 
    0.253 (Depositor), 0.266 (DCC) 
  • R-Value Work: 
    0.225 (Depositor), 0.235 (DCC) 

Starting Model: experimental
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Literature

Synthetic Approaches to Novel Human Carbonic Anhydrase Isoform Inhibitors Based on Pyrrol-2-one Moiety.

Al-Matarneh, C.M.Pinteala, M.Nicolescu, A.Silion, M.Mocci, F.Puf, R.Angeli, A.Ferraroni, M.Supuran, C.T.Zara, S.Carradori, S.Paoletti, N.Bonardi, A.Gratteri, P.

(2024) J Med Chem 67: 3018-3038

  • DOI: https://doi.org/10.1021/acs.jmedchem.3c02190
  • Primary Citation of Related Structures:  
    8R2K

  • PubMed Abstract: 

    New dihydro-pyrrol-2-one compounds, featuring dual sulfonamide groups, were synthesized through a one-pot, three-component approach utilizing trifluoroacetic acid as a catalyst. Computational analysis using density functional theory (DFT) and condensed Fukui function explored the structure-reactivity relationship. Evaluation against human carbonic anhydrase isoforms (hCA I, II, IX, XII) revealed potent inhibition. The widely expressed cytosolic hCA I was inhibited across a range of concentrations ( K I 3.9-870.9 nM). hCA II, also cytosolic, exhibited good inhibition as well. Notably, all compounds effectively inhibited tumor-associated hCA IX ( K I 1.9-211.2 nM) and hCA XII (low nanomolar). Biological assessments on MCF7 cancer cells highlighted the compounds' ability, in conjunction with doxorubicin, to significantly impact tumor cell viability. These findings underscore the potential therapeutic relevance of the synthesized compounds in cancer treatment.


  • Organizational Affiliation
    • Center of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Carbonic anhydrase 2A [auth AAA]260Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1 (PDB Primary Data), 4.2.1.69 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
PHAROS:  P00918
GTEx:  ENSG00000104267 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00918
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free:  0.253 (Depositor), 0.266 (DCC) 
  • R-Value Work:  0.225 (Depositor), 0.235 (DCC) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.557α = 90
b = 41.613β = 104.407
c = 72.867γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
REFMACphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2024-11-13
    Type: Initial release
  • Version 1.1: 2025-05-28
    Changes: Database references