Comparative study of the reactability of phosphoric acid residues in tRNA(Ser) and tRNA(Leu) from Thermus thermophilus
1999
: The reactivity of phosphates in the Thermus thermophilus tRNA(Ser) (GCU) and tRNA(Leu) (CAG) was studied using the ethylnitrosourea modification. It was shown that phosphates of nucleotides 58-60 (T loop), 20-22 (D loop), and 48 (at the junction of the variable and T stems) were poorly modified in both tRNAs. The most pronounced differences in the reactivity were observed for phosphates at the junctions of the variable stem with T-stem (47q, 49) and anticodon stem (45). This indicates differences in orientations of the long variable arm relative to the backbone in the tRNAs studied.
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