2.1.3.1 (S)-methylmalonyl-CoA + pyruvate = propanoyl-CoA + oxaloacetate homology model of human pyruvate carboxyltransferase, conserved mechanism 658551 2.1.3.1 (S)-methylmalonyl-CoA + pyruvate = propanoyl-CoA + oxaloacetate mechanism 485816, 485820, 485821, 485823, 485826, 485827 2.1.3.1 (S)-methylmalonyl-CoA + pyruvate = propanoyl-CoA + oxaloacetate partial reaction 1 is catalysed specifically by the 12S subunit, partial reaction 2 is catalysed specifically by the 5S subunit 485827, 485828, 485829, 485830, 485831