Fig. 2
From: Nucleotide composition of the Zika virus RNA genome and its codon usage
Nucleotide skew analysis of the ZIKV RNA genome. Skew values (N1 − N2)/(N1 + N2) were calculated in overlapping windows along the sequence. Window size was set at 1 % of the length of the sequence with a step size of 20 % of the window size, resulting in approximately 500 data points comprising the X-axis. We used the same Y-axis for the cumulative skew values to allow a direct comparison of the compositional signatures of different genome parts: “all nts”, “ds nts” and “ss nts”