SYSTEM 
HIV-1 PR (LAI isolate) tethered dimer with inhibitor A-76928
HIVdb File 
hiv13nci
PDB File 
1hvc 
Company or Laboratory 
SAIC, NCI-FCRDC Frederick
Year 
1994
INHIBITOR (Type) 
A76928 (C2 symmetry-based diol isostere (S,S)) 
Composition of the Inhibitor (Substrate) or Summary Formula 
N - methyl - N2methyl - piperidyl - Val - Phe - [CH(OH)CH(OH)] - Phe - Val - N - methyl - N2methyl - piperidyl (S,S)
Schematic Formula 
A76928
Resolution 
1.8Ao
R factor 
0.2
Space Group 
P212121
Dimension of Elementary Cell 
a=52.10,b=59.80,c=62.20
a,b,g  
(alpha,beta,gamma)
a=b=g=90
Reference  T.N.Bhat, E.T.Baldwin, B. Liu, Y-S. E.Cheng, J.W. Erickson; Nat. Struct. Biol., 1, 552, 1994
Comment The two identical HIV-1 PR genes were linked by DNA coding for a five residue spacer Gly - Gly - Ser - Ser - Gly. Determined 1.8 A the crystal structure of a covalently tethered dimer of HIV-1 PR