Gosset Coenzyme A Overview
Coenzyme A (CoA) is an essential cofactor involved in numerous metabolic pathways, including the tricarboxylic acid (TCA) cycle, fatty acid metabolism, and the synthesis of lipids, glycans, and heme. It acts primarily as an acyl group carrier and is critical for energy production and biosynthetic reactions. CoA is synthesized from pantothenate (vitamin B5), cysteine, and ATP through a five-step pathway involving pantothenate kinase (PanK; CoaA; CoaX), phosphopantothenoylcysteine synthetase (PPCS; CoaB), phosphopantothenoylcysteine decarboxylase (PPC-DC; CoaC), phosphopantetheine adenylyl transferase (COASY; PPAT; CoaD), and dephosphocoenzyme A kinase (COASY, DPCK; CoaE). Pantothenate kinase is a key regulatory enzyme subject to feedback inhibition by CoA. Defects in CoA synthesis can lead to diseases like neurodegeneration and cardiomyopathy.
Mechanism of Action
N/A - CoA itself is not directly targeted by drugs, but its synthesis pathway can be.
Biological Functions
Disease Associations
Safety Considerations
- Deficiency can lead to various metabolic disorders
- Inhibition of synthesis can have broad metabolic effects