Serine/threonine 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.
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Protein Aliases: [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 1, mitochondrial; [Pyruvate dehydrogenase [lipoamide]] kinase isozyme 1, mitochondrial; isoenzyme 1; kinase isoenzyme 1; lipoamide; mitochondrial pyruvate dehydrogenase, lipoamide, kinase isoenzyme 1; PDH kinase 1; PDK p48; pyruvate dehydrogenase; pyruvate dehydrogenase kinase 1; Pyruvate dehydrogenase kinase isoform 1; pyruvate dehydrogenase kinase, isoenzyme 1; pyruvate dehydrogenase kinase, isozyme 1
Gene Aliases: B830012B01; D530020C15Rik; PDHK1; PDK1
Molecular Function: non-receptor serine/threonine protein kinase