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(A) Sequence of hras-1 and densitometric scans of DMS-footprintings in 100 mM CsCl and 140 mM KCl; (B) Sequence of hras-2 and densitometric scans of DMS-footprinting in 100 mM CsCl and 140 mM KCl; (C) CD spectra of hras-1 in 50 mM Tris-HCl pH 7.4, 100 mM KCl, T = 20, 30, 40, 50, 55, 60, 65, 70, 80 and 90°C; (D) CD spectra of hras-2 in 50 mM Tris-HCl pH 7.5, 100 mM KCl, T = 20, 30, 40, 50, 55, 60, 65, 70, 80 and 90°C.
