It was previously reported that the murine SF-25 clone demonstrated normal human tissue binding against a subpopulation of cells in the distal tubules of the kidney.2 Using RNA-sequencing raw data from The Cancer Genome Atlas (TCGA) and the Genome Tissue Expression (GTex) we examined the expression of SLC3A2 in malignant vs normal tissues across a range of human cancers (figure 3A and online supplemental figure S3). Here, SLC3A2 is linked to cancer.