Recombinant Human [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 1, mitochondrial (PDK1)

Uniprot Id

Q15118

Target Species

Human

Target Name

PDK1

Target Full Name

[Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 1, mitochondrial

Target Function

Kinase that plays a key role in regulation of glucose and fatty acid metabolism and homeostasis via phosphorylation of the pyruvate dehydrogenase subunits PDHA1 and PDHA2. This inhibits pyruvate dehydrogenase activity, and thereby regulates metabolite flux through the tricarboxylic acid cycle, down-regulates aerobic respiration and inhibits the formation of acetyl-coenzyme A from pyruvate. Plays an important role in cellular responses to hypoxia and is important for cell proliferation under hypoxia. Protects cells against apoptosis in response to hypoxia and oxidative stress.

Target Subcellular Location

Mitochondrion matrix.

Target Protein Families

PDK/BCKDK protein kinase family

Target Tissue Specificity

Expressed predominantly in the heart. Detected at lower levels in liver, skeletal muscle and pancreas.

Target Synonyms

[Pyruvate dehydrogenase [lipoamide]] kinase isozyme 1, mitochondrial; HGNC:8809; Mitochondrial pyruvate dehydrogenase kinase isoenzyme 1; PDH kinase 1; Pdk1; PDK1_HUMAN; Pyruvate dehydrogenase kinase isoform 1; Pyruvate dehydrogenase kinase, isoenzyme 1

Target Background

Pyruvate dehydrogenase (PDH) is a mitochondrial multienzyme complex that catalyzes the oxidative decarboxylation of pyruvate and is one of the major enzymes responsible for the regulation of homeostasis of carbohydrate fuels in mammals. The enzymatic activity is regulated by a phosphorylation/dephosphorylation cycle. Phosphorylation of PDH by a specific pyruvate dehydrogenase kinase (PDK) results in inactivation. Multiple alternatively spliced transcript variants have been found for this gene.