Figure 4

Cumulative distribution of bi-directional similarity, D, between the two stanzas and comparison of genomic and proteomic sequences of E. coli threonine gene A, thrA (2463 base pairs for the genomic sequence and 820 aminoacids for the proteomic sequence), with B, thrB (933 base pairs for the genomic sequence and 310 aminoacids for the proteomic sequence). The null model expectation, that of uniform random distribution of units, is represented by dashed lines, obtained using Eq. 11. for n = 2 (half dimensionality of USM state space for DNA) and n = 4.3 (half dimensionality of USM state space for proteins, n = 4.32, and for the two stanzas, n = 4.25). The solid lines represent the actual cumulative distribution of D values.