5MJN

Three dimensional structure of human carbonic anhydrase II in complex with 5-[(4Chlorobenzyl)sulfanyl]thiophene-2-sulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.17 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.140 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

5-Substituted-benzylsulfanyl-thiophene-2-sulfonamides with effective carbonic anhydrase inhibitory activity: Solution and crystallographic investigations.

Ivanova, J.Balode, A.Zalubovskis, R.Leitans, J.Kazaks, A.Vullo, D.Tars, K.Supuran, C.T.

(2017) Bioorg. Med. Chem. 25: 857-863

  • DOI: 10.1016/j.bmc.2016.11.045

  • PubMed Abstract: 
  • A series of 5-substituted-benzylsulfanyl-thiophene-2-sulfonamides was prepared by reacting 5-bromo-thiophene-2-sulfonamide with 5-substituted-benzyl mercaptans. The new compounds were investigated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. Th ...

    A series of 5-substituted-benzylsulfanyl-thiophene-2-sulfonamides was prepared by reacting 5-bromo-thiophene-2-sulfonamide with 5-substituted-benzyl mercaptans. The new compounds were investigated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. The cytosolic human (h) isoforms hCA I was poorly inhibited by the new sulfonamides (K I s in the range of 683-4250nM), whereas hCA II, and the transmembrane, tumor associated isoforms hCA IX and XII were effectively inhibited in the subnanomolar-nanomolar range. A high resolution X-ray crystal structure of the adduct of hCA II with one of the new sulfonamides allowed us to rationalize the excellent inhibitory activity of these heterocyclic sulfonamides.


    Organizational Affiliation

    Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di ScienzeFarmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy. Electronic address: claudiu.supuran@unifi.it.,Latvian Biomedical Research and Study Center, Rātsupītes 1, LV-1067 Riga, Latvia; Faculty of Biology, Department of Molecular Biology, University of Latvia, Jelgavas 1, LV1004 Riga, Latvia.,Latvian Biomedical Research and Study Center, Rātsupītes 1, LV-1067 Riga, Latvia.,Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia; Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3/7 Paula Valdena Str., Riga LV-1048, Latvia.,Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia. Electronic address: raivis@osi.lv.,Università degli Studi di Firenze, Dipartimento di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.




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 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
7O8
Query on 7O8

Download SDF File 
Download CCD File 
A
5-[(4-chlorophenyl)methylsulfanyl]thiophene-2-sulfonamide
C11 H10 Cl N O2 S3
YITSBZGLCZKZEB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.17 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.140 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.360α = 90.00
b = 41.320β = 104.48
c = 72.250γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
Cootmodel building
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-12-01 
  • Released Date: 2017-12-06 
  • Deposition Author(s): Leitans, J., Tars, K.

Revision History 

  • Version 1.0: 2017-12-06
    Type: Initial release