CSK and neoplasm: Subsequent qPCR validation confirmed that amino acid transporters of the SLC7 family (minidiscs (mnd) and JhI-21) and SLC36 family (CG8785, pathetic (path) and CG1139) were upregulated in tumours of ras1G12V;csk−/− animals raised on an HSD compared to CD (Fig. 4a).