Fig. 4
From: Virus expression detection reveals RNA-sequencing contamination in TCGA
Viral expression across time. a Timeline of TCGA and UHRR library preparation. Stacked bar graph, with each bar representing one month. b Log 10 read counts of human endogenous retrovirus K113 (HERV, positive control), HPV18, or XMV43 in UHHR or UHHR+ samples. c Stacked bar graph showing the number of either UHRR or TCGA sample in each flowcell. The x-axis is organized by chronologically (oldest sample on left). Only flowcells that contained HPV18 (excluding CESC), XMV43, or a UHRR(+) sample were included. a&c The colors represent TCGA samples with no evidence of either HPV18, XMV43, or CESC samples (gray), samples with HPV18 reads (pink, excluding CESC samples), XMV43 reads (blue), non-cervical samples that contain both HPV18 and XMV43 (purple), or was a UHRR (black), or UHRR+ (dark gray) sample