Dihydrolipoamide succinyltransferase (DLST) is a key subunit in this complex (2).
二氢硫辛酰胺-琥珀酰转移酶是复合物中的关键亚基（2）。
2
Dihydrolipoamide dehydrogenase (DLDH), a flavin-dependent oxidoreductase, is an ubiquitous enzyme which presents in variety of organisms and plays an important role in energy metabolism.