| IPR001078 | 2-oxoacid dehydrogenase acyltransferase, catalytic domain | Domain |
| IPR014276 | 2-oxoglutarate dehydrogenase, E2 component | Family |
| IPR023213 | Chloramphenicol acetyltransferase-like domain superfamily | Homologous Superfamily |
| IPR036625 | E3-binding domain superfamily | Homologous Superfamily |
| IPR050743 | 2-oxoacid dehydrogenase family, E2 component | Family |
| IPR004167 | Peripheral subunit-binding domain | Domain |
| IPR011053 | Single hybrid motif | Homologous Superfamily |
| IPR003016 | 2-oxo acid dehydrogenase, lipoyl-binding site | Binding Site |
| IPR000089 | Biotin/lipoyl attachment | Domain |