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 
  • R-Value Observed: 0.198 

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
  • Primary Citation of Related Structures:  
    3B4F

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Carbonic anhydrase 2A260Homo 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
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TUO
Query on TUO

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 CCD File 
A
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-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 %)
TUOKi :  7.199999809265137   nM  PDBBind
TUOKi:  7.199999809265137   nM  Binding MOAD
TUOKi:  7.199999809265137   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42α = 90
b = 41.35β = 104.35
c = 72.34γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
CrysalisProdata collection
CrysalisProdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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