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 

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

  • 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 sapiensGene 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 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RDT
Query on RDT

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

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

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A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

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A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
DT9
Query on DT9

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A
(1S)-6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline-2(1H)-sulfonamide
C12 H18 N2 O4 S
GUJQIHRSATWPQA-QMMMGPOBSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ACTKi: 130000 nM (100) BINDINGDB
DT9Ki: 87.3 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 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.180α = 90.00
b = 41.210β = 104.31
c = 72.000γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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