6B5A

Carbonic anhydrase IX-mimic in complex with nitrogenous base-bearing benezenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.622 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.155 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Discovery of New Sulfonamide Carbonic Anhydrase IX Inhibitors Incorporating Nitrogenous Bases.

Nocentini, A.Bua, S.Lomelino, C.L.McKenna, R.Menicatti, M.Bartolucci, G.Tenci, B.Di Cesare Mannelli, L.Ghelardini, C.Gratteri, P.Supuran, C.T.

(2017) ACS Med Chem Lett 8: 1314-1319

  • DOI: 10.1021/acsmedchemlett.7b00399
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Incorporation of the purine/pyrimidine moieties as tails to classical benzenesulfonamide scaffolds afforded two series of human (h) carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. The compounds were designed according to the molecular hybridization a ...

    Incorporation of the purine/pyrimidine moieties as tails to classical benzenesulfonamide scaffolds afforded two series of human (h) carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. The compounds were designed according to the molecular hybridization approach, in order to modulate the interaction with different CA isozymes and exploit the antitumor effect of uracil and adenine derivatives in parallel and synergic mode to the inhibition of the tumor-associated hCA IX. The sulfonamides were investigated as inhibitors of four isoforms, cytosolic hCA I/II and transmembrane hCA IV/IX. The inhibitory profiles were dependent on the length and positioning of the spacer connecting the two pharmacophores. X-ray crystallography demonstrated the binding mode of an inhibitor to hCA II and hCA IX-mimic. Compounds endowed with the best hCA IX inhibitory efficacy were evaluated for antiproliferative activity against HT-29 colon cancer cell lines. The in vitro results suggest multiple mechanisms of action are responsible for the compounds' cytotoxic efficacy.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Box 100245, Gainesville, Florida 32610, United States.,Department of NEUROFARBA, Pharmaceutical and Nutraceutical section, University of Florence, Via Ugo Schiff 6, Sesto Fiorentino, 50019 Florence, Italy.,Department of NEUROFARBA-Pharmacology and Toxicology Section, University of Florence, Viale G. Pieraccini 6, 50019 Florence, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
257Homo 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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CQS
Query on CQS

Download SDF File 
Download CCD File 
A
2-(6-amino-9H-purin-9-yl)-N-[2-(4-sulfamoylphenyl)ethyl]acetamide
C15 H17 N7 O3 S
PUMWMJFQZZVYPO-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.622 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.155 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.015α = 90.00
b = 41.246β = 103.68
c = 71.766γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXphasing
HKL-2000data scaling
HKL-2000data reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-09-05
    Type: Initial release