a mitochondrial protein required for anchoring dihydrolipoamide dehydrogenase (E3) to the pyruvate dehydrogenase complexes (PDHC) of eukaryotes. This specific binding is essential for a PDHC function. Eukaryotic pyruvate dehydrogenase complexes are organized about a core consisting of the oligomeric dihydrolipoamide acetyl-transferase (E2), around which are arranged multiple copies of pyruvate dehydrogenase (E1), dihydrolipoamide dehydrogenase (E3), and protein X bound by non-covalent bonds. Belongs to the 2-oxoacid dehydrogenase family. Contains 1 lipoyl-binding domain. Note: This description may include information from UniProtKB.
Protein type: Mitochondrial
Cellular Component: mitochondrial matrix
Molecular Function: transferase activity, transferring acyl groups
Biological Process: regulation of acetyl-CoA biosynthetic process from pyruvate; pyruvate metabolic process
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.