3NI5

Carbonic anhydrase inhibitor: C1 family


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Synthesis and crystallographic analysis of new sulfonamides incorporating NO-donating moieties with potent antiglaucoma action

Mincione, F.Benedini, F.Biondi, S.Cecchi, A.Temperini, C.Formicola, G.Pacileo, I.Scozzafava, A.Masini, E.Supuran, C.T.

(2011) Bioorg.Med.Chem.Lett. 21: 3216-3221

  • DOI: 10.1016/j.bmcl.2011.04.046

  • PubMed Abstract: 
  • Several aromatic/heterocyclic sulfonamide scaffolds have been used to synthesize compounds incorporating NO-donating moieties of the nitrate ester type, which have been investigated for the inhibition of five physiologically relevant human carbonic a ...

    Several aromatic/heterocyclic sulfonamide scaffolds have been used to synthesize compounds incorporating NO-donating moieties of the nitrate ester type, which have been investigated for the inhibition of five physiologically relevant human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms: hCA I (offtarget), II, IV and XII (antiglaucoma targets) and IX (antitumor target). Some of the new compounds showed effective in vitro inhibition of the target isoforms involved in glaucoma, and the X-ray crystal structure of one of them revealed factors associated with the marked inhibitory activity. In an animal model of ocular hypertension, one of the new compounds was twice more effective than dorzolamide in reducing elevated intraocular pressure characteristic of this disease, anticipating their potential for the treatment of glaucoma.


    Organizational Affiliation

    U.O. Oculistica Az. USL 3, Val di Nievole, Ospedale di Pescia, Pescia, Italy.




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
C1H
Query on C1H

Download SDF File 
Download CCD File 
A
4-(nitrooxy)butyl 3-[(5-sulfamoyl-1,3,4-thiadiazol-2-yl)sulfamoyl]benzoate
C13 H15 N5 O9 S3
QCXYDHYYUCXOLH-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 %)
C1HKi: 28 nM (100) BINDINGDB
C1HKi: 28 nM BINDINGMOAD
C1HKi: 28 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.229 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 41.790α = 90.00
b = 42.110β = 104.40
c = 72.020γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
AMoREphasing
CrysalisProdata collection
CrysalisProdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-08
    Type: Refinement description