Biochem/physiol Actions
BT2 is an orally active, allosteric mitochondrial branched-chain α-ketoacid dehydrogenase (BCKD) kinase (BCKDK or BDK) inhibitor (IC50 = 3.19 μM) that induces BDK dissociation from the BCKD complex (BCKDC) with superior pharmacokinetics and metabolic stability than (S)-CPP. BT2 increases cellular BCKDC activity in cultures (40 μM; MEF & murine hepatocytes) and induces BDK degradation in mice & rats in vivo, effectively upregulating tissue BCKDC activity and downregulating plasma branched-chain amino acid (BCAA) level. Typical dosing range: 40-250 μM (in cultures or cell-free), 20-40 mg/kg (ip. or po. in vivo; mice & rats) or 200 mg/kg diet.
Orally active, allosteric mitochondrial branched-chain α-ketoacid dehydrogenase complex (BCKDC) kinase (BCKDK, BDK) inhibitor in vitro and in vivo.