Fig. 2.

Overall structure of the JDV Tat ARM–BIV TAR complex. (A) Superposition of the 10 lowest energy minimized structures on the minimized average structure. Only heavy atoms were used for the superposition and are shown. (B) Comparison of the minimized average structures of the JDV Tat ARM (residues 65–81)–BIV TAR complex (Left) and BIV Tat ARM (residues 68–81)–BIV TAR complex (28) (Right). The structures, as seen from the major groove, show the peptides as colored ribbons and BIV TAR in gray. The N and C termini are indicated but poorly ordered in the BIV Tat complex.