Fig. 4.
tRNAAsp7 adopts an alternative secondary structure. Data of enzymatic probing are summarized on tRNAAsp7 (A) putative cloverleaf representation or on (B) an alternative structure. Positions cut by single stranded probes (S1 and T1) are specified with circles and V1 cleavages are indicated with arrows. The E-loop motif is squared. (C) Putative interactions with the Alu insertion of AspRS mRNA 3′ UTR are distributed within three blocks (1, 2, and 3). Results of footprinting experiments in the presence of Alu (-23 + 54) are indicated: Nt protected from S1 and T1 digestion are gray-colored; increased accessibilities are shown with thick open circles (S1 and T1) and triangles (V1).