To confirm the translational relevance of this response in humans, we performed immunofluorescent staining for PC2, collecting ducts (staining for the lectin Dolichos biflorus agglutinin [DBA]), and mitochondria (staining for the voltage-dependent anion channel [VDAC]) in normal human kidneys (NHK) or kidneys from patients diagnosed with acute tubular injury (AKI; Figs. 1E, S1D; patient information included in Table S1). Here, RPS19 is linked to acute kidney injury.