SYSTEM 
SIV PR 
(mutant S4H, from macaque monkeys recombinant form SIV=MAC=239, plasmid SOD) with irreversible nonpeptide inhibitor EPNP
HIVdb File 
hiv1ucs
PDB File 
2sam
Company or Laboratory 
University of California at San Francisco
Year 
1993
INHIBITOR (Type) 
EPNP (epoxy inhibitor)
Composition of the Inhibitor (Substrate) or Summary Formula 
1,2-epoxy-3-(p-nitrophenoxy) propane
Resolution 
2.4Ao
R factor 
0.19
Space Group 
C2221
Dimension of Elementary Cell 
a=62.70,b=32.20,c=96.10
a,b,g
(alpha,beta,gamma)
a=b=g=90
Reference  R.B.Rose,J.R.Rose, R.Salto, C.S.Craik, R.M.Stroud; Biochemistry, 32, 12498, 1993
Comment  Four side chains are not seen in the electron density. Lys7, Glu37, Arg70, Lys72. These residues are on the surface of the protein and are presumably disordered