8QF7 | pdb_00008qf7

Human Carbonic Anhydrase II in complex with (3-((N-(4-sulfamoylbenzyl)phenylsulfonamido)methyl)phenyl)glycine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.23 Å
  • R-Value Free: 
    0.152 (Depositor), 0.162 (DCC) 
  • R-Value Work: 
    0.117 (Depositor), 0.128 (DCC) 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Novel Carbonic Anhydrase Inhibitors with Dual-Tail Core Sulfonamide Show Potent and Lasting Effects for Glaucoma Therapy.

Angeli, A.Chelli, I.Lucarini, L.Sgambellone, S.Marri, S.Villano, S.Ferraroni, M.De Luca, V.Capasso, C.Carta, F.Supuran, C.T.

(2024) J Med Chem 67: 3066-3089

  • DOI: https://doi.org/10.1021/acs.jmedchem.3c02254
  • Primary Citation of Related Structures:  
    8QF7, 8QF9, 8QFK, 8QUF

  • PubMed Abstract: 

    Glaucoma, a leading cause of irreversible vision loss worldwide, is characterized by elevated intraocular pressure (IOP), a well-established risk factor across all its forms. We present the design and synthesis of 39 novel carbonic anhydrase inhibitors by a dual-tailed approach, strategically crafted to interact with distinct hydrophobic and hydrophilic pockets of CA active sites. The series was investigated against the CA isoforms implicated in glaucoma (hCA II, hCA IV, and hCA XII), and the X-ray crystal structures of compounds 25a , 25f , and 26a with CA II, along with 14b in complex with a hCA XII mimic, were determined. Selected compounds ( 14a , 25a , and 26a ) underwent evaluation for their ability to reduce IOP in rabbits with ocular hypertension. Derivative 26a showed significant potency and sustained IOP-lowering effects, surpassing the efficacy of the drugs dorzolamide and bimatoprost. This positions compound 26a as a promising candidate for the development of a novel anti-glaucoma medication.


  • Organizational Affiliation
    • NEUROFARBA Department, Sezione di Scienze Farmaceutiche, University of Florence, Via Ugo Schiff 6, 50019 Florence, Italy.

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
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.23 Å
  • R-Value Free:  0.152 (Depositor), 0.162 (DCC) 
  • R-Value Work:  0.117 (Depositor), 0.128 (DCC) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.44α = 90
b = 41.46β = 104.41
c = 72.41γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata 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: 2024-09-11
    Type: Initial release
  • Version 1.1: 2025-03-26
    Changes: Database references, Structure summary