Fatty acid catabolism pathway

The fatty acid catabolism pathway, also known as fatty acid oxidation, is a central metabolic process by which fatty acids are broken down to generate energy. This occurs primarily through a series of reactions called β‑oxidation, which takes place in the mitochondrial matrix. The process begins with activation of free fatty acids into acyl-CoA derivatives and their transport into mitochondria via the carnitine shuttle system. Each cycle of β‑oxidation shortens the fatty acyl chain by two carbons, producing acetyl-CoA, NADH, and FADH₂. Acetyl-CoA enters the citric acid cycle for further energy extraction while NADH and FADH₂ feed electrons into oxidative phosphorylation for ATP synthesis. Regulation is tightly controlled by hormonal signals such as insulin and glucagon.\n\nDisorders affecting this pathway can lead to severe clinical consequences due to impaired energy production and toxic accumulation of intermediates—most notably seen in inherited enzyme deficiencies that disrupt normal breakdown or transport steps.\n\nNotes on Target Validity:\nThe "Fatty acid catabolism pathway" refers broadly to a multi-step biochemical process involving many different proteins/enzymes rather than a single molecular entity such as an enzyme, receptor, transporter, etc. Therefore:\n - It is *not* considered a therapeutic target itself but comprises multiple potential targets.\n - For structured data purposes about drug targets or biomarkers at molecule level, it would be more appropriate to specify an individual component such as "Carnitine palmitoyltransferase I" or "Acyl-CoA dehydrogenase".\n\nIf you need information on any specific enzyme/protein within this pathway as a drug target (e.g., CPT1A), please specify that molecule.

Other names

Fatty acid oxidationβ-oxidationfatty acid degradationlipid catabolism