Amino acid sequence at the major phosphorylation site on bovine kidney branched-chain 2-oxoacid dehydrogenase complex

Inactivation of branched-chain 2-oxoacid dehydrogenase complex correlates with phosphorylation at one site on the alpha subunit of the E1 component. The amino acid sequence surrounding this phosphorylated serine residue has now been determined. This sequence shows certain similarities with the sequence surrounding phosphorylated residue(s) on pyruvate dehydrogenase complex.