Reaction catalyzed by 2-oxoglutarate dehydrogenase system (1.2.1.105)
+
CoA
+
=
+
+
2-oxoglutarate
+
CoA
+
3-acetylpyridine adenine dinucleotide
=
succinyl-CoA
+
CO2
+
reduced 3-acetylpyridine adenine dinucleotide