Correlation of per-nucleotide coverage profiles between all pairs of sequencing experiments. The heat map colors represent the Pearson correlation coefficients. Shades of blue correspond to the interval (-0.1, 0.2); shades of red correspond to (0.2, 1.0). Individual experiments are clustered by gene coverage. The labels contain the following information about experiments: SRA study ID; SRA experiment ID; institution short name; genome ("G") or transcriptome ("R") sequencing; platform ("I" stands for Illumina, "S" for SOLiD); fragment length if reads are paired; read length; individual ID, nationality, cell line and/or tissue. Additional information about experiments can be found in Additional file 6.