Figure 7
From: Ranges of control in the transcriptional regulation of Escherichia coli
Connectivity correlation function. Connectivity correlation function c(s) for genes (dotted) and operons (dashed). The functions show that the probability that the members of a pair of non-isolated points regulate each other decreases only for distances s larger than a value s0 (approximately 3000 bp for the genes and 2500 for the operons). The weak irregularities of the curve for the operons result from the fact that, while the same estimator is used as for the genes, the number of passive operons is much smaller than that of that of passive genes and so the statistical quality of the results decreases a little.