
Secondary structure of MAL 123–349 predicted by mfold. The PBS/TLE (left) and Psi (ψ) (right) domains are shown in the dotted boxes. The A-rich stem–loop is shown in green, the PBS in red, and the 23-nt subtype A-specific insertion in blue. The C277G DIS mutant construct is indicated by the circled C. To facilitate in vitro transcription, two 5′ G's, not encoded by HIV-1, were added to this construct (gray).










