Results 31 to 40 of about 3,490 (194)

An engineered variant of MECR reductase reveals indispensability of long-chain acyl-ACPs for mitochondrial respiration

open access: yesNature Communications, 2023
Mitochondrial fatty acid synthesis (mtFAS) is essential for respiratory function. MtFAS generates the octanoic acid precursor for lipoic acid synthesis, but the role of longer fatty acid products has remained unclear.
M. Tanvir Rahman   +8 more
doaj   +1 more source

Lipoic Acid Metabolism as a Potential Chemotherapeutic Target Against Plasmodium falciparum and Staphylococcus aureus

open access: yesFrontiers in Chemistry, 2021
Lipoic acid (LA) is an organic compound that plays a key role in cellular metabolism. It participates in a posttranslational modification (PTM) named lipoylation, an event that is highly conserved and that occurs in multimeric metabolic enzymes of very ...
Sun Liu Rei Yan   +4 more
doaj   +1 more source

Proteomic analysis reveals a novel function of the kinase Sat4p in Saccharomyces cerevisiae mitochondria. [PDF]

open access: yesPLoS ONE, 2014
The Saccharomyces cerevisiae kinase Sat4p has been originally identified as a protein involved in salt tolerance and stabilization of plasma membrane transporters, implicating a cytoplasmic localization. Our study revealed an additional mitochondrial (mt)
Uta Gey   +4 more
doaj   +1 more source

Lipoyl-E2-PDH Gets a Second Job [PDF]

open access: yesCell Host & Microbe, 2017
Pyruvate dehydrogenase (PDH) plays a well-known metabolic role inside cells. In this issue of Cell Host & Microbe, Grayczyk et al. (2017) show that the bacterial pathogen Staphylococcus aureus unexpectedly secretes and repurposes the lipoylated E2 subunit of PDH to suppress TLR-mediated activation of host macrophages by bacterial lipoproteins.
Seth W, Dickey, Michael, Otto
openaire   +2 more sources

Mitochondrial fatty acid synthesis coordinates oxidative metabolism in mammalian mitochondria

open access: yeseLife, 2020
Cells harbor two systems for fatty acid synthesis, one in the cytoplasm (catalyzed by fatty acid synthase, FASN) and one in the mitochondria (mtFAS).
Sara M Nowinski   +18 more
doaj   +1 more source

Characterization of Helianthus annuus Lipoic Acid Biosynthesis: The Mitochondrial Octanoyltransferase and Lipoyl Synthase Enzyme System

open access: yesFrontiers in Plant Science, 2021
Lipoic acid (LA, 6,8-dithiooctanoic acid) is a sulfur containing coenzyme essential for the activity of several key enzymes involved in oxidative and single carbon metabolism in most bacteria and eukaryotes. LA is synthetized by the concerted activity of
Raquel Martins-Noguerol   +8 more
doaj   +1 more source

Apicoplast lipoic acid protein ligase B is not essential for Plasmodium falciparum.

open access: yesPLoS Pathogens, 2007
Lipoic acid (LA) is an essential cofactor of alpha-keto acid dehydrogenase complexes (KADHs) and the glycine cleavage system. In Plasmodium, LA is attached to the KADHs by organelle-specific lipoylation pathways.
Svenja Günther   +8 more
doaj   +1 more source

Methionine restriction constrains lipoylation and activates mitochondria for nitrogenic synthesis of amino acids

open access: yesNature Communications, 2023
Methionine restriction (MR) provides metabolic benefits in many organisms. However, mechanisms underlying the MR-induced effect remain incompletely understood. Here, we show in the budding yeast S.
Wen Fang   +8 more
doaj   +1 more source

Differential Effects of Mercurial on the Lipoyl Reductase and Diaphorase Activities of Lipoyl Dehydrogenase

open access: yesJournal of Biological Chemistry, 1966
Abstract The sensitivity of lipoyl dehydrogenase to phenylmercuric acetate, a reagent for —SH groups, has been investigated. Titration of available sulfhydryl groups in the enzyme brings about inactivation in the reduced diphosphopyridine nucleotide-lipoyl reductase activity, while activity with the artificial hydrogen acceptor 2,6-dichloroindophenol ...
L, Casola, V, Massey
openaire   +2 more sources

Sirtuin Lipoamidase Activity Is Conserved in Bacteria as a Regulator of Metabolic Enzyme Complexes

open access: yesmBio, 2017
Lipoic acid is an essential metabolic cofactor added as a posttranslational modification on several multimeric enzyme complexes. These protein complexes, evolutionarily conserved from bacteria to humans, are core regulators of cellular metabolism.
Elizabeth A. Rowland   +5 more
doaj   +1 more source

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