CPT1A and lip and oral cavity carcinoma: In patients with oral cancer, enzymes such as CPT1A (K08765), acyl-CoA synthetase (K01897), and diacylglycerol choline phosphotransferase (K00994) correlated positively with Streptococcus, whereas acyl-CoA dehydrogenase (K06445) and H+-transporting ATPase (K01535) correlated positively with Parvimonas (Figure 3A,B; Figure S4A,B).