A distinct binding mode of a hydroxyethylamine isostere inhibitor of HIV-1 protease.
Dohnalek, J., Hasek, J., Duskova, J., Petrokova, H., Hradilek, M., Soucek, M., Konvalinka, J., Brynda, J., Sedlacek, J., Fabry, M.(2001) Acta Crystallogr D Biol Crystallogr 57: 472-476
- PubMed: 11223536 
- DOI: 10.1107/s0907444900018928
- Primary Citation of Related Structures:  
1FQX - PubMed Abstract: 
Crystallization conditions for an HIV-1 protease-inhibitor complex were optimized to produce crystals suitable for X-ray diffraction experiments. The X-ray structure of the HIV-1 protease complex was solved and refined at 3.1 A resolution. In contrast to Saquinavir, the mimetic hydroxy group of the inhibitor Boc-Phe-Psi[(S)-CH(OH)CH(2)NH]-Phe-Glu-Phe-NH(2) is placed asymmetrically with respect to the non-crystallographic twofold axis of the protease dimer so that hydrogen bonds between the amino group of the inhibitor and the catalytic aspartates can be formed ...