4Z1N

Carbonic anhydrase inhibitors: Design and synthesis of new heteroaryl-N-carbonylbenzenesulfonamides targeting druggable human carbonic anhydrase isoforms (hCA VII, hCA IX, and hCA XIV)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


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Literature

Carbonic anhydrase inhibitors: Design, synthesis and structural characterization of new heteroaryl-N-carbonylbenzenesulfonamides targeting druggable human carbonic anhydrase isoforms.

Buemi, M.R.De Luca, L.Ferro, S.Bruno, E.Ceruso, M.Supuran, C.T.Pospisilova, K.Brynda, J.Rezacova, P.Gitto, R.

(2015) Eur.J.Med.Chem. 102: 223-232

  • DOI: 10.1016/j.ejmech.2015.07.049
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A set of heteroaryl-N-carbonylbenzenesulfonamides has been designed, synthesized, and screened as inhibitors of human carbonic anhydrases (hCAs). The new sulfonamide derivatives were tested against hCA I, hCA II, hCA VII, hCA IX, and hCA XII isoforms ...

    A set of heteroaryl-N-carbonylbenzenesulfonamides has been designed, synthesized, and screened as inhibitors of human carbonic anhydrases (hCAs). The new sulfonamide derivatives were tested against hCA I, hCA II, hCA VII, hCA IX, and hCA XII isoforms using acetazolamide (AAZ, 1) and topiramate (TPM, 2) as reference compounds. Six compounds were low nanomolar inhibitors of tumor-associated hCA IX isoform (Ki values < 10 nM); among them we identified three arylsulfonamides showing unexpected inefficacy over brain distributed hCA VII isoform (hCA IX/hCA VII selectivity ratio > 1500 for compound 5c). Thus, these compounds can offer the opportunity to highlight the interactions preventing the inhibition of hCA VII mainly expressed in central nervous system. Thereby, we used structural and computational techniques to study in depth the interaction with hCAs. In an effort to confirm the inhibitory action we determined crystal structures of five selected heteroaryl-N-carbonylbenzenesulfonamides (4a, 4b, 4e, 5c, and 5e) in complex with hCA II. Moreover, to explore the lack of inhibitory effects of selected compounds (e.g.4b and 5c) we also performed docking studies into hCA VII catalytic site.


    Organizational Affiliation

    Dipartimento Scienze del Farmaco e dei Prodotti per la salute, Università degli Studi di Messina, Viale Annunziata, I-98168 Messina, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
258Homo 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
4KD
Query on 4KD

Download SDF File 
Download CCD File 
A
4-[(6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl)carbonyl]benzenesulfonamide
C18 H20 N2 O5 S
BDKQEENATAIJAQ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
4KDKi: 5.9 nM (100) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.189 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.230α = 90.00
b = 41.295β = 104.51
c = 72.349γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
XDSdata reduction
PDB_EXTRACTdata extraction
REFMACrefinement
REFMACphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
GACRCzech RepublicGA15-05677S
Technology Agency of the Czech RepublicCzech RepublicTE01020028

Revision History 

  • Version 1.0: 2015-08-26
    Type: Initial release