Several mitochondrial carriers, such as the sulfur oxyanion transporters SLC25A14/UCP5 and SLC25A30/UCP6, the coenzyme A carrier SLC25A42, the glutathione transporter SLC25A39, the branched-chain amino acid transporter SLC25A44, and the phosphate carrier SLC25A3, have not been extensively investigated in the context of cancer. Here, SLC25A30 is linked to cancer.