Figure 2
From: Ranges of control in the transcriptional regulation of Escherichia coli
Definitions of categories and distances. (A) The classes of genes (involved and not involved in regulation) entering Analysis I and the subset of genes involved in regulation (pairs of genes under common regulation), which is studied in Analysis II. (B) Examples of distances s11, s12 and s22 entering point process analysis. (C) No distinction is made between genes receiving a regulatory influence and genes encoding transcription factors regulating other genes. (D) Various possibilities of defining the distance of two genes along the genome. In this investigation we use variant 1.