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Figure 4 | BMC Bioinformatics

Figure 4

From: The ancient history of the structure of ribonuclease P and the early origins of Archaea

Figure 4

Evolution of RPR structure. Trees of molecular substructures reconstructed from geometrical characters of RPR structure. Trees of substructures describe the evolution of stems (S) (12,121 steps; CI = 0.790, RI = 0.772; RC = 0.610; g1 = -0.758), bulges and internal loops (B) (1,168 steps; CI = 0.775 and 0.771, with and without uninformative characters, respectively; RI = 0.546, RC = 0.423; g1 = -1.884), hairpin loops (H) (1,949 steps; CI = 0.591, RI = 0.765, RC = 0.452; g1 = -0.556), and unpaired segments that include external segments (free ends) and multiloop regions (U) (5,277 steps; CI = 0.374, RI = 0.634 RC = 0.237; g1 = -0.719). BS >50% are shown for individual nodes. Symbols in terminal leaves describe substructures in domains.

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