X-ray Crystallographic Structure of ABT-378 (Lopinavir) Bound to HIV-1 ProteaseStoll, V., Qin, W., Stewart, K.D., Jakob, C., Park, C., Walter, K., Simmer, R.L., Helfrich, R., Bussiere, D., Kao, J., Kempf, D., Sham, H.L., Norbeck, D.W.
(2002) Bioorg Med Chem 10: 2803-2806
- PubMed: 12057670
- DOI: https://doi.org/10.1016/s0968-0896(02)00051-2
- Primary Citation of Related Structures:
- PubMed Abstract:
The crystal structure of ABT-378 (lopinavir), bound to the active site of HIV-1 protease is described. A comparison with crystal structures of ritonavir, A-78791, and BILA-2450 shows some analogous features with previous reported compounds. A cyclic urea unit in the P(2) position of ABT-378 is novel and makes two bidentate hydrogen bonds with Asp 29 of HIV-1 protease. In addition, a previously unreported shift in the Gly 48 carbonyl position is observed. A discussion of the structural features responsible for its high potency against wild-type HIV protease is given along with an analysis of the effect of active site mutations on potency in in vitro assays.
Department of Structural Biology, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, IL 60064, USA.