A Mitochondrial Expatriate: Nuclear Pyruvate Dehydrogenase
نویسندگان
چکیده
منابع مشابه
A Mitochondrial Expatriate: Nuclear Pyruvate Dehydrogenase
The pyruvate dehydrogenase complex (PDC) catalyzes the conversion of pyruvate into acetyl-CoA, a critical step in metabolism. Sutendra et al. now demonstrate that PDC can translocate from the mitochondria to the nucleus to provide acetyl-CoA necessary for histone acetylation, suggesting a new pathway for mitochondrial-nuclear communication.
متن کاملPyruvate dehydrogenase kinase activity of pig heart pyruvate dehydrogenase (E1 component of pyruvate dehydrogenase complex).
The pyruvate dehydrogenase (E1) and acetyltransferase (E2) components of pig heart and ox kidney pyruvate dehydrogenase (PDH) complex were separated and purified. The E1 component was phosphorylated (alpha-chain) and inactivated by MgATP. Phosphorylation was mainly confined to site 1. Addition of E2 accelerated phosphorylation of all three sites in E1 alpha and inactivation of E1. On the basis ...
متن کاملPyruvate Dehydrogenase Kinase 4
OBJECTIVE Pyruvate dehydrogenase complex (PDC) serves as the metabolic switch between glucose and fatty acid utilization. PDC activity is inhibited by PDC kinase (PDK). PDC shares the same substrate, i.e., pyruvate, as glyceroneogenesis, a pathway controlling fatty acid release from white adipose tissue (WAT). Thiazolidinediones activate glyceroneogenesis. We studied the regulation by rosiglita...
متن کاملEvidence that rat liver pyruvate dehydrogenase kinase activator protein is a pyruvate dehydrogenase kinase.
It is shown here that rat liver pyruvate dehydrogenase (PDH) kinase activator protein (KAP) catalyses ATP-dependent inactivation and [32P]phosphorylation of pig heart PDHE1 and of yeast (Saccharomyces cerevisiae) PDH complex devoid of PDH kinase activity, that fluorosulphonylbenzoyladenosine inactivates rat liver KAP and the intrinsic PDH kinase of rat liver PDH complex, and that KAP, like PDH ...
متن کاملPyruvate dehydrogenase deficiency in a Sussex spaniel.
A two-year-old, intact female Sussex spaniel was presented with signs of exercise intolerance. Pre- and post-exercise serum lactate and pyruvate concentrations and urinary organic acid screening supported a diagnosis of pyruvate dehydrogenase deficiency, as previously reported in this breed. Dietary therapy was initiated for six months, during which time there was no reported clinical deteriora...
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ژورنال
عنوان ژورنال: Cell
سال: 2014
ISSN: 0092-8674
DOI: 10.1016/j.cell.2014.06.018