5MJN image
Deposition Date 2016-12-01
Release Date 2017-12-06
Last Version Date 2024-01-17
Entry Detail
PDB ID:
5MJN
Keywords:
LYASE
Title:
Three dimensional structure of human carbonic anhydrase II in complex with 5-[(4Chlorobenzyl)sulfanyl]thiophene-2-sulfonamide
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli BL21
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.17 Å
R-Value Free:
0.17
R-Value Work:
0.13
R-Value Observed:
0.14
Space Group:
P 1 21 1
5MJN validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Carbonic anhydrase 2
Gene (Uniprot):CA2
Chain IDs:A
Chain Length:259
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P00918 Pfam ID:PF00194 EC:4.2.1.1
Ligand Molecules
7O8
ZN
Primary Citation
5-Substituted-benzylsulfanyl-thiophene-2-sulfonamides with effective carbonic anhydrase inhibitory activity: Solution and crystallographic investigations.
Bioorg. Med. Chem. 25 857 863 (2017)
PMID: 28024887 DOI: 10.1016/j.bmc.2016.11.045

Abstact

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 (KIs 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.

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Primary Citation of related structures
5MJN