Mg²⁺-stimulated (in-line) cleavage of RNAs 1 and 2.

<p>A. Electrophoretic analysis of cleavage. Mg²⁺: RNA treated with 5 mM MgCl₂. OH: hydrolysis ladder. T1: Ribonuclease T1 digestion. Untreated RNA in lanes labeled “-“. Bands due to guanosines identified from RNAse T1 digestion are indicated. B. Mapping of cleavage onto predicted secondary structures of <b>1</b> and <b>2</b>. Cleavage after each nucleotide is indicated by a line with length proportional to band intensity.