GUSB and prostate cancer: Fig. S4. Scatter blots representation of distribution of MacroH2A1.1 and QKI mRNA levels assessed by RT-qPCR and normalized to GUSB, among Gleason scores ≤ 6, 7 (3 + 4), 7 (4 + 3) and ≥ 8 prostate cancer tissue samples.