ISDA

Deposition Date 2010-10-07

Release Date 2011-04-20

Last Version Date 2023-11-01

Entry Detail

PDB ID:

3P4V

Keywords:

LYASE/LYASE INHIBITOR

Title:

Human carbonic anhydrase II in complex with (+)-Xylariamide A

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.20

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 1 21 1

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Carbonic anhydrase 2
Gene (Uniprot):CA2
Chain IDs:A
Chain Length:260
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P00918 Pfam ID:PF00194 EC:4.2.1.1

Ligand Molecules

PMX

Primary Citation

Natural Product-Based Phenols as Novel Probes for Mycobacterial and Fungal Carbonic Anhydrases.

Davis, R.A, Hofmann, A, Osman, A, Hall, R.A, Muhlschlegel, F.A, Vullo, D, Innocenti, A, Supuran, C.T, Poulsen, S.A.Show

J.Med.Chem. 54 1682 1692 (2011)

PMID: 21332115 DOI: 10.1021/jm1013242

Abstact

In order to discover novel probes that may help in the investigation and control of infectious diseases through a new mechanism of action, we have evaluated a library of phenol-based natural products (NPs) for enzyme inhibition against four recently characterized pathogen β-family carbonic anhydrases (CAs). These include CAs from Mycobacterium tuberculosis, Candida albicans, and Cryptococcus neoformans as well as α-family human CA I and CA II for comparison. Many of the NPs selectively inhibited the mycobacterial and fungal β-CAs, with the two best performing compounds displaying submicromolar inhibition with a preference for fungal over human CA inhibition of more than 2 orders of magnitude. These compounds provide the first example of non-sulfonamide inhibitors that display β over α CA enzyme selectivity. Structural characterization of the library compounds in complex with human CA II revealed a novel binding mode whereby a methyl ester interacts via a water molecule with the active site zinc.

Legend

Protein

Chemical

Disease

Primary Citation of related structures