The conformation of the epitope - fragment 579 to 601 - in the gp41 transme
mbrane domain of HIV-1 has been studied by 2D-NMR and theoretical methods.
Molecular dynamics simulations using a total of 80 nOe's as distance restra
ints and 22 dihedral restraints have been used to determine the solution st
ructure. The peptide adopts a beta-pleated sheet in DMSO. Full relaxation m
atrix analysis carried out on the simulated structures gives an R-factor of
0.46.