1. Studies on the kinetics of pyruvate transport into mitochondria by an 'inhibitor-stop' technique were hampered by the decarboxylation of pyruvate by mitochondria even in the presence of rotenone. Decarboxylation was minimal at 6 degrees C. At this temperature the Km for pyruvate was 0.15 mM and Vmax. was 0.54nmol/min per mg of protein; alpha-cyano-4-hydroxycinnamate was found to be a non-com...

Dichloroacetate (DCA) as a small, cheap and available anticancer agent, is a pyruvate mimetic compound that stimulates the activity of pyruvate dehydrogenase (PDH) enzyme through inhibition of pyruvate dehydrogenase kinases (PDHK1-4). DCA turns on programed cell death (apoptosis) which suppressed in tumor cells and therefore inhibits tumor growth. DCA also interferes with the glucose uses of ca...

Microbial metabolic pathway engineering is a potent strategy used worldwide to produce aromatic compounds. We drastically rewired the primary of Escherichia coli aromatics and their derivatives. The E. was compartmentalized into production energy modules. focused on pyruvate-forming reaction in biosynthesis some compounds as connecting those strains were engineered show no growth unless pyruvat...

The cover image is based on the Research Article Oxidation of hyperpolarized [1-13C]pyruvate in isolated rat kidneys by Gaurav Sharma et al., https://doi.org/10.1002/nbm.4857.

The mitogenic lectins concanavalin A and phytohemagglutinin were found to stimulate pyruvate oxidation in rat mesenteric lymphocytes. Marked cell agglutination accompanied this response. Wheat germ agglutinin, a nonmitogenic lectin, also aggregated lymphocytes but did not cause alteration of pyruvate oxidation. Cell lysates from lectin-treated cells retained their ability to oxidize pyruvate at...

PURPOSE Ethyl pyruvate has anti-inflammatory properties and protects organs from ischemia/reperfusion (I/R)-induced tissue injury. The aim of this study was to determine whether ethyl pyruvate decreases the inflammatory response after regional I/R injury and whether ethyl pyruvate protects against delayed regional I/R injury in an in vivo rat heart model after a 24 hours reperfusion. MATERIAL...

The binding of pyruvate dehydrogenase and dihydrolipoyl dehydrogenase (flavoprotein) to dihydrolipoyl transacetylase, the core enzyme of the E. coli pyruvate dehydrogenase complex [EC 1.2.4.1:pyruvate:lipoate oxidoreductase (decaryboxylating and acceptor-acetylating)], has been studied using sedimentation equilibrium analysis and radioactive enzymes in conjunction with gel filtration chromatogr...

Heat tolerance is well known to be key to fungal survival in many habitats, but our mechanistic understanding of how organisms adapt to heat stress is still incomplete. Using Metarhizium robertsii, an emerging model organism for assessing evolutionary processes, we report that pyruvate is in the vanguard of molecules that scavenge heat-induced reactive oxygen species (ROS). We show that, as wel...

Initial velocity studies in the absence and presence of product and dead-end inhibitors suggest a steady-state random mechanism for malic enzyme in the direction of reductive carboxylation of pyruvate. For this quadreactant enzymatic reaction (Mn2+ is a pseudoreactant), initial velocity patterns were obtained under conditions in which two substrates were maintained at saturating concentrations ...