3PO6

Crystal structure of human carbonic anhydrase II with 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline-2(1H)-sulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.145 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the interaction between carbonic anhydrase and 1,2,3,4-tetrahydroisoquinolin-2-ylsulfonamides.

Mader, P.Brynda, J.Gitto, R.Agnello, S.Pachl, P.Supuran, C.T.Chimirri, A.Rezacova, P.

(2011) J Med Chem 54: 2522-2526

  • DOI: 10.1021/jm2000213
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Isoquinolinesulfonamides inhibit human carbonic anhydrases (hCAs) and display selectivity toward therapeutically relevant isozymes. The crystal structure of hCA II in complex with 6,7-dimethoxy-1-methyl-1,2,3,4-tetrahydroisoquinolin-2-ylsulfonamide r ...

    Isoquinolinesulfonamides inhibit human carbonic anhydrases (hCAs) and display selectivity toward therapeutically relevant isozymes. The crystal structure of hCA II in complex with 6,7-dimethoxy-1-methyl-1,2,3,4-tetrahydroisoquinolin-2-ylsulfonamide revealed unusual inhibitor binding. Structural analyses allowed for discerning the fine details of the inhibitor binding mode to the active site, thus providing clues for the future design of even more selective inhibitors for druggable isoforms such as the cancer associated hCA IX and neuronal hCA VII.


    Organizational Affiliation

    Department of Structural Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
259Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens)
Go to UniProtKB:  P00918
NIH Common Fund Data Resources
PHAROS  P00918
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DT9
Query on DT9

Download CCD File 
A
(1S)-6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline-2(1H)-sulfonamide
C12 H18 N2 O4 S
GUJQIHRSATWPQA-QMMMGPOBSA-N
 Ligand Interaction
RDT
Query on RDT

Download CCD File 
A
(1R)-6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline-2(1H)-sulfonamide
C12 H18 N2 O4 S
GUJQIHRSATWPQA-MRVPVSSYSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

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

Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ACTKi:  130000   nM  BindingDB
DT9Ki :  87.30000305175781   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.145 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.18α = 90
b = 41.21β = 104.31
c = 72γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-04-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-12-07
    Changes: Database references