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The UV spectra and color of the SeU-RNA. (A) red line (λmax = 260 and 370 nm): UV spectrum of the SeU-RNA (5′-G-SeU-GUACAC-3′) without heating; black broken line (λmax = 260 and 367 nm): UV spectrum of the SeU-RNA after heating at 70°C for 8 h; (B) the SeU-RNA (yellow, 1.0 mM) and the corresponding native RNA (colorless, 1.0 mM).
