MT-ND4 and cancer: Regardless, in our analyses, it was also notable that 11914 (MT-ND4) and 16111 (D-loop) are not only present in the greatest number of cancer types, but these types are the same (hepatocellular carcinoma, oesophageal adenocarcinoma, pancreatic adenocarcinoma, renal cell carcinoma and prostate adenocarcinoma).