This enzyme forms part of a bacterial metabolic pathway that oxidatively catabolizes toluene, o-xylene, 3-ethyltoluene, and 1,2,4-trimethylbenzene into intermediates of the citric acid cycle. With a monomer size of just 62 amino acid residues, the 4-Oxalocrotonate tautomerase is one of the smallest enzyme subunits known.
The 4-Oxalocrotonate tautomerase is a key component in a bacterial metabolic pathway that dismantles toluene and its derivatives into citric acid cycle components through oxidative breakdown. Its small size, consisting of only 62 amino acids, highlights its unique characteristics.