3S9T

Crystal structure of human carbonic anhydrase isozyme II with 2-chloro-5-{[(4,6-dimethyl-2-pyrimidinyl)sulfanyl]acetyl}benzenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.148 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Design of [(2-pyrimidinylthio)acetyl]benzenesulfonamides as inhibitors of human carbonic anhydrases.

Capkauskaite, E.Zubriene, A.Baranauskiene, L.Tamulaitiene, G.Manakova, E.Kairys, V.Grazulis, S.Tumkevicius, S.Matulis, D.

(2012) Eur J Med Chem 51: 259-270

  • DOI: 10.1016/j.ejmech.2012.02.050
  • Primary Citation of Related Structures:  
    3S9T, 3S8X, 3SAX, 3SAP, 3SBH, 3SBI, 3M2N

  • PubMed Abstract: 
  • A series of [(2-pyrimidinylthio)acetyl]benzenesulfonamides were designed and synthesized. Their binding affinities as inhibitors of several recombinant human carbonic anhydrase (CA) isozymes were determined by isothermal titration calorimetry (ITC) a ...

    A series of [(2-pyrimidinylthio)acetyl]benzenesulfonamides were designed and synthesized. Their binding affinities as inhibitors of several recombinant human carbonic anhydrase (CA) isozymes were determined by isothermal titration calorimetry (ITC) and thermal shift assay (TSA). A group of compounds containing a chlorine atom in the benzenesulfonamide ring were found to exhibit higher selectivity but lower binding affinity toward tested CAs. The crystal structures of selected compounds in complex with CA II were determined to atomic resolution. Docking studies were performed to compare the binding modes of experimentally determined crystallographic structures with computational prediction of the pyrimidine derivative binding to CA II. Several compounds bound to select CAs with single-digit nanomolar affinities and could be used as leads for inhibitor development toward a select CA isozyme.


    Organizational Affiliation

    Vilnius University, Institute of Biotechnology, Department of Biothermodynamics and Drug Design, Graičiūno 8, Vilnius LT-02241, Lithuania.



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
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
NIH Common Fund Data Resources
PHAROS  P00918
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
E49
Query on E49

Download CCD File 
A
2-chloro-5-{[(4,6-dimethylpyrimidin-2-yl)sulfanyl]acetyl}benzenesulfonamide
C14 H14 Cl N3 O3 S2
GMUOUKSISIODEJ-UHFFFAOYSA-N
 Ligand Interaction
BCN
Query on BCN

Download CCD File 
A
BICINE
C6 H13 N O4
FSVCELGFZIQNCK-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
E49Kd:  150   nM  BindingDB
E49Kd:  220   nM  Binding MOAD
E49Kd :  150   nM  PDBBind
E49Kd:  220   nM  BindingDB
E49Kd:  222   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.148 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.012α = 90
b = 41.058β = 104.15
c = 71.839γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PDB_EXTRACTdata extraction
MAR345dtbdata collection

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-18
    Type: Initial release
  • Version 1.1: 2012-05-16
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Database references