Download MendeleyDiscovery of Potent Inhibitors of Dihydroneopterin Aldolase Using CrystaLEAD High-Throughput X-ray Crystallographic Screening and Structure-Directed Lead Optimization.
Sanders, W.J., Nienaber, V.L., Lerner, C.G., McCall, J.O., Merrick, S.M., Swanson, S.J., Harlan, J.E., Stoll, V.S., Stamper, G.F., Betz, S.F., Condroski, K.R., Meadows, R.P., Severin, J.M., Walter, K.A., Magdalinos, P., Jakob, C.G., Wagner, R., Beutel, B.A.(2004) J Med Chem 47: 1709-1718
- PubMed: 15027862
- DOI: https://doi.org/10.1021/jm030497y
- Primary Citation of Related Structures:
1RRI, 1RRW, 1RRY, 1RS2, 1RS4, 1RSD, 1RSI, 1U68 - PubMed Abstract:
Potent inhibitors of 7,8-dihydroneopterin aldolase (DHNA; EC 4.1.2.25) have been discovered using CrystaLEAD X-ray crystallographic high-throughput screening followed by structure-directed optimization. Screening of a 10 000 compound random library provided several low affinity leads and their corresponding X-ray crystal structures bound to the enzyme. The presence of a common structural feature in each of the leads suggested a strategy for the construction of a directed library of approximately 1000 compounds that were screened for inhibitory activity in a traditional enzyme assay. Several lead compounds with IC(50) values of about 1 microM against DHNA were identified, and crystal structures of their enzyme-bound complexes were obtained by cocrystallization. Structure-directed optimization of one of the leads thus identified afforded potent inhibitors with submicromolar IC(50) values.
Organizational Affiliation:
Infectious Disease Research, Abbott Laboratories, 200 Abbott Park Road, Abbott Park, Illinois 60064-6217, USA. will.sanders@abbott.com
