6Y00

crystal structure of human carbonic anhydrase I in complex with 4-(3-(2-((2-fluorobenzyl)amino)ethyl)ureido) benzenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.37 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Benzylaminoethyureido-Tailed Benzenesulfonamides: Design, Synthesis, Kinetic and X-ray Investigations on Human Carbonic Anhydrases.

Ali, M.Bozdag, M.Farooq, U.Angeli, A.Carta, F.Berto, P.Zanotti, G.Supuran, C.T.

(2020) Int J Mol Sci 21

  • DOI: https://doi.org/10.3390/ijms21072560
  • Primary Citation of Related Structures:  
    6XZE, 6XZO, 6XZS, 6XZX, 6XZY, 6Y00

  • PubMed Abstract: 

    A drug design strategy of carbonic anhydrase inhibitors (CAIs) belonging to sulfonamides incorporating ureidoethylaminobenzyl tails is presented. A variety of substitution patterns on the ring and the tails, located on para - or meta - positions with respect to the sulfonamide warheads were incorporated in the new compounds. Inhibition of human carbonic anhydrases (hCA) isoforms I, II, IX and XII, involving various pathologies, was assessed with the new compounds. Selective inhibitory profile towards hCA II was observed, the most active compounds being low nM inhibitors ( K I s of 2.8-9.2 nM, respectively). Extensive X-ray crystallographic analysis of several sulfonamides in an adduct with hCA I allowed an in-depth understanding of their binding mode and to lay a detailed structure-activity relationship.


  • Organizational Affiliation

    Dipartimento Neurofarba, Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche, Polo Scientifico, Via Ugo Schiff 6, Sesto Fiorentino, 50019 Florence, Italy.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Carbonic anhydrase 1
A, B
261Homo sapiensMutation(s): 0 
EC: 4.2.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00915 (Homo sapiens)
Explore P00915 
Go to UniProtKB:  P00915
PHAROS:  P00915
GTEx:  ENSG00000133742 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00915
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
O5T Binding MOAD:  6Y00 Ki: 653.8 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.37 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.572α = 90
b = 71.384β = 90
c = 121.397γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
xia2data reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-23
    Type: Initial release
  • Version 1.1: 2024-01-24
    Changes: Data collection, Database references, Refinement description