Fig. 3: Multiple proteins in the kynurenine pathway are dysregulated in RCC.

Mass spectrometric relative concentrations (LFQ intensity) of proteins in the kynurenine pathway for paired normal kidney/tumour tissue samples (black and grey bars, respectively) for a ccRCC and b chromophobe RCC. Numbers along x-axis refer to assigned tissue sample number. Differences between groups by Wilcoxon matched-pairs sign rank test: Clear cell RCC: QPRT (p < 0.001), KMO (p < 0.001), HAAO (p = 0.01), and NAMPT (p < 0.01); Chromophobe RCC: QPRT (p < 0.016), KMO (p < 0.016), HAAO (p < 0.016), and NAMPT (p < 0.016).