6H3Q

Crystal structure of human carbonic anhydrase II in complex with the 4-(5-(chloromethyl)-1,3-selenazol-2-yl)benzenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.31 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 

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Ligand Structure Quality Assessment 


This is version 1.0 of the entry. See complete history


Literature

Discovery of new 2, 5-disubstituted 1,3-selenazoles as selective human carbonic anhydrase IX inhibitors with potent anti-tumor activity.

Angeli, A.Trallori, E.Ferraroni, M.Di Cesare Mannelli, L.Ghelardini, C.Supuran, C.T.

(2018) Eur J Med Chem 157: 1214-1222

  • DOI: 10.1016/j.ejmech.2018.08.096
  • Primary Citation of Related Structures:  
    6H3Q

  • PubMed Abstract: 
  • A series of disubstituted selenazole derivatives was synthetized and evaluated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors against the human (h) isoforms hCA I, II, IV, VA, VB and IX, involved in a variety of diseases including glaucoma, retinitis pigmentosa, epilepsy, arthritis and tumors ...

    A series of disubstituted selenazole derivatives was synthetized and evaluated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors against the human (h) isoforms hCA I, II, IV, VA, VB and IX, involved in a variety of diseases including glaucoma, retinitis pigmentosa, epilepsy, arthritis and tumors. The investigated compounds showed potent inhibition against the tumor-associated transmembrane hCA IX, with K I s in the subnanomolar - low nanomolar range, and were evaluated for their effects on cell viability against the human prostate (PC3) and breast (MDA-MB-231) cancer cell lines, showing effective anti-tumor activity. These selenazoles are interesting leads for the development of new, isoform-selective CA IX inhibitors.


    Organizational Affiliation

    Department of University of Florence, NEUROFARBA Dept, Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, Sesto Fiorentino, 50019, Florence, Italy. Electronic address: claudiu.supuran@unifi.it.



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
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
PHAROS:  P00918
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMH (Subject of Investigation/LOI)
Query on FMH

Download Ideal Coordinates CCD File 
C [auth A]4-[5-(chloromethyl)-1,3-selenazol-2-yl]benzenesulfonamide
C10 H9 Cl N2 O2 S Se
UUSUUFIKTNRGKD-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
B [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
FMH BindingDB:  6H3Q Ki: 73 (nM) from 1 assay(s)
Binding MOAD:  6H3Q Ki: 47.3 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.31 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.378α = 90
b = 41.361β = 104.26
c = 72.047γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
REFMACphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-17
    Type: Initial release