Download MendeleyNatural 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.(2011) J Med Chem 54: 1682-1692
- PubMed: 21332115
- DOI: https://doi.org/10.1021/jm1013242
- Primary Citation of Related Structures:
3NB5, 3P4V - PubMed Abstract:
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.
Organizational Affiliation:
Eskitis Institute, Griffith University, Nathan, Queensland 4111, Australia.
