3B4F

Carbonic anhydrase inhibitors. Interaction of 2-(hydrazinocarbonyl)-3-phenyl-1H-indole-5-sulfonamide with twelve mammalian isoforms: kinetic and X-Ray crystallographic studies


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Carbonic anhydrase inhibitors. Interaction of 2-(hydrazinocarbonyl)-3-phenyl-1H-indole-5-sulfonamide with 12 mammalian isoforms: kinetic and X-ray crystallographic studies.

Guzel, O.Temperini, C.Innocenti, A.Scozzafava, A.Salman, A.Supuran, C.T.

(2008) Bioorg.Med.Chem.Lett. 18: 152-158

  • DOI: 10.1016/j.bmcl.2007.10.110

  • PubMed Abstract: 
  • 2-(Hydrazinocarbonyl)-3-phenyl-1H-indole-5-sulfonamide was tested for its interaction with 12 carbonic anhydrase (CA, EC 4.2.1.1) isoforms in the search of compounds with good inhibitory activity against isozymes with medicinal chemistry applications ...

    2-(Hydrazinocarbonyl)-3-phenyl-1H-indole-5-sulfonamide was tested for its interaction with 12 carbonic anhydrase (CA, EC 4.2.1.1) isoforms in the search of compounds with good inhibitory activity against isozymes with medicinal chemistry applications, such as CA I, II, VA, VB, VII, IX, and XII among others. This sulfonamide is a potent inhibitor of CA I and II (K(I)s of 7.2-7.5 nM), a medium potency inhibitor of CA VII, IX, XII, and XIV, and a weak inhibitor against the other ubiquitous isoforms, making it thus a very interesting clinical candidate for situations in which a strong inhibition of CA I and II is needed. The crystal structure of the hCA II adduct of this sulfonamide revealed many favorable interactions between the inhibitor and the enzyme which explain its strong low nanomolar affinity for this isoform but may also be exploited for the design of effective inhibitors incorporating bicyclic moieties.


    Organizational Affiliation

    Istanbul University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, 34116 Beyazit, Istanbul, Turkey.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
260Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens)
Go to Gene View: CA2
Go to UniProtKB:  P00918
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
TUO
Query on TUO

Download SDF File 
Download CCD File 
A
2-(hydrazinocarbonyl)-3-phenyl-1H-indole-5-sulfonamide
C15 H14 N4 O3 S
PPDLAUCFAOODER-UHFFFAOYSA-N
 Ligand Interaction
HG
Query on HG

Download SDF File 
Download CCD File 
A
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TUOKi: 7.2 nM (100) BINDINGDB
TUOKi: 7.2 nM BINDINGMOAD
TUOKi: 7.2 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.196 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.000α = 90.00
b = 41.350β = 104.35
c = 72.340γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
AMoREphasing
CrysalisProdata reduction
REFMACrefinement
CrysalisProdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-01-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description
  • Version 1.3: 2018-04-04
    Type: Data collection