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. 2009 Feb 2;4(2):e4340. doi: 10.1371/journal.pone.0004340

Figure 2. Scaling aggregation analysis of a given codon in the 1st and 2nd halves of each genome of E. coli.

Figure 2

In each plot of Fig. 2(a–d), the corresponding Inline graphic as a function of Inline graphic for GCC and GGC in a) the OOO genome; b) the extended RNA code type I, c) the extended RNA code type II, and in d) the RNA World. The estimates of the slope Inline graphic together with their confidence intervals for each codon in each of the different genomes are illustrated in Fig. 2(e). The symbols 1 h and 2 h stand for the 1st and 2nd halves of the genome, respectively.