Extensive variation in ribosomal DNA (rDNA) contacts across protein-coding genes and 1MB genomic segments.

<p>(A) Distribution of the number of 45S contacts (log scale) in 1MB genomic segments for LCL (green), K562 (purple) and ESC (red). (B) Distribution of the number of 45S rDNA-gene contacts per base pair (log scale) in LCL and K562. (C) Distribution of the number of 5S contacts (log scale) in 1MB segments for LCL and K562. (D) Distribution of the number of 5S rDNA-gene contacts per base pair (log scale) in LCL and K562. Only segments and genes without rDNA pseudogenes are included.