PCT and conditional sequence logo at position 17.

The PCT at position 17 (Figure a) is aligned with the corresponding conditional sequence logo (Figure b) Each stack of nucleotides represents the relative conditional nucleotide frequency given the context represented by the corresponding leaf. The width of the stack is scaled by the number of sequences that are represented by the leaf. We observe two dominating contexts, which yield either a G (context I) or a C (context V) as dominating nucleotide.