6ECZ

Bioreductive 4-hydroxy-3-nitro-5-ureido-benzenesulfonamides selectively target the tumor-associated carbonic anhydrase isoforms IX and XII and show hypoxia-enhanced cytotoxicity against human cancer cell lines.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.21 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


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Literature

4-Hydroxy-3-nitro-5-ureido-benzenesulfonamides selectively target the tumor-associated carbonic anhydrase isoforms IX and XII showing hypoxia-enhanced anti-proliferative profiles.

Nocentini, A.Trallori, E.Singh, S.Lomelino, C.L.Bartolucci, G.Di Cesare Mannelli, L.Ghelardini, C.McKenna, R.Gratteri, P.Supuran, C.T.

(2018) J. Med. Chem. --: --

  • DOI: 10.1021/acs.jmedchem.8b01504
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human carbonic anhydrases (CA, EC, 4.2.1.1) IX and XII are overexpressed in cancer cells as adaptive response to hypoxia and acidic conditions characteristic of many tumors. In addition, hypoxia facilitates the activity of specific oxido-reductases t ...

    Human carbonic anhydrases (CA, EC, 4.2.1.1) IX and XII are overexpressed in cancer cells as adaptive response to hypoxia and acidic conditions characteristic of many tumors. In addition, hypoxia facilitates the activity of specific oxido-reductases that may be exploited to selectively activate bioreductive prodrugs. Here, new selective CA IX/XII inhibitors, as analogues of the antitumor phase II drug SLC-0111 are described, namely ureido-substituted benzenesulfonamides appended with a nitro-aromatic moiety to yield an antiproliferative action increased by hypoxia. These compounds were screened for the inhibition of the ubiquitous hCA I/II and the target hCA IX/XII. Six X-ray crystallographies with CA II and IX/mimic allowed for the rationalization of the compounds inhibitory activity. The effects of some such compounds on the viability of HT-29, MDA-MB-231, and PC-3 human cancer cell lines in both normoxic and hypoxic conditions were examined, providing the initiation toward the development of hypoxia-activated antitumor CAIs.


    Organizational Affiliation

    NEUROFARBA Dept., Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Via Ugo Schiff 6 , 50019 Sesto Fiorentino 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
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
J4D
Query on J4D

Download SDF File 
Download CCD File 
A
1-[3-nitro-2-oxidanyl-5-[oxidanyl(oxidanylidene)-$l^{4}-azanyl]sulfonyl-phenyl]-3-[2,3,4,5,6-pentakis(fluoranyl)phenyl]urea
C13 H6 F5 N4 O8 S
OTJPTVGRVTVHBI-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.21 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.164 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.880α = 90.00
b = 41.884β = 104.45
c = 72.905γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
PDB_EXTRACTdata extraction
PHENIXphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-11-28
    Type: Initial release