To determine the amino acid transporter expression profile in colon adenocarcinoma (COAD), we used the publicly available web tool UALCAN (website: http://ualcan.path.uab.edu/index.html) [28] with The Cancer Genome Atlas (TCGA) database to analyze the expression of common amino acid transporters (including SLC6A14, SLC3 and SLC7 families) in CRC and normal colonic tissue samples. The gene discussed is SLC6A14; the disease is colon adenocarcinoma.