3VBD

Complex of human carbonic anhydrase II with 4-(6-methoxy-3,4-dihydroisoquinolin-1-yl)benzenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.05 Å
  • R-Value Free: 0.160 
  • R-Value Work: 0.127 
  • R-Value Observed: 0.134 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Synthesis, Structure-Activity Relationship Studies, and X-ray Crystallographic Analysis of Arylsulfonamides as Potent Carbonic Anhydrase Inhibitors.

Gitto, R.Damiano, F.M.Mader, P.De Luca, L.Ferro, S.Supuran, C.T.Vullo, D.Brynda, J.Rezacova, P.Chimirri, A.

(2012) J Med Chem 55: 3891-3899

  • DOI: 10.1021/jm300112w
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • A series of arylsulfonamides has been synthesized and investigated for the inhibition of some selected human carbonic anhydrase isoforms. The studied compounds showed significant inhibitory effects in the nanomolar range toward druggable isoforms (hC ...

    A series of arylsulfonamides has been synthesized and investigated for the inhibition of some selected human carbonic anhydrase isoforms. The studied compounds showed significant inhibitory effects in the nanomolar range toward druggable isoforms (hCA VII, hCA IX, and hCA XIV) (K(i) values from 4.8 to 61.7 nM), whereas they generally exhibited significant selectivity over hCA I and hCA II, that are ubiquitous and considered off-target isoforms. On the basis of biochemical data, we herein discussed structure-affinity relationships for this series of arylsulfonamides, suggesting a key role for alkoxy substituents in CA inhibition. Furthermore, X-ray crystal structures of complexes of two active inhibitors (I and 2a) with hCA II allowed us to elucidate the main interactions between the inhibitor and specific amino acid residues within the catalytic site.


    Organizational Affiliation

    Dipartimento Farmaco-Chimico, Università di Messina, Viale Annunziata, I-98168 Messina, Italy. rgitto@unime.it



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2A259Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
NIH Common Fund Data Resources
PHAROS  P00918
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MBO
Query on MBO

Download CCD File 
A
MERCURIBENZOIC ACID
C7 H5 Hg O2
FVFZSVRSDNUCGG-UHFFFAOYSA-N
 Ligand Interaction
0FZ
Query on 0FZ

Download CCD File 
A
4-(6-methoxy-3,4-dihydroisoquinolin-1-yl)benzenesulfonamide
C16 H16 N2 O3 S
RZQVMYVIRNCVDY-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0FZKi:  8.600000381469727   nM  BindingDB
0FZKi :  8.600000381469727   nM  PDBBind
0FZKi:  8.600000381469727   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.05 Å
  • R-Value Free: 0.160 
  • R-Value Work: 0.127 
  • R-Value Observed: 0.134 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.01α = 90
b = 41.18β = 104.33
c = 71.76γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
SHELXL-97refinement
MOSFLMdata reduction
SCALAdata scaling
REFMACphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-04
    Type: Initial release
  • Version 1.1: 2012-04-11
    Changes: Database references
  • Version 1.2: 2012-06-27
    Changes: Database references