Recognition of the inner lipoyl-bearing domain of dihydrolipoyl transacetylase and of the blood glucose-lowering compound AZD7545 by pyruvate dehydrogenase kinase 2. [PDF]
Pyruvate dehydrogenase kinase 2 (PDHK2) is a unique mitochondrial protein kinase that regulates the activity of the pyruvate dehydrogenase multienzyme complex (PDC). PDHK2 is an integral component of PDC tightly bound to the inner lipoyl-bearing domains (L2) of the dihydrolipoyl transacetylase component (E2) of PDC.
Tuganova A, Klyuyeva A, Popov KM.
europepmc +7 more sources
Nematode pyruvate dehydrogenase kinases: role of the C-terminus in binding to the dihydrolipoyl transacetylase core of the pyruvate dehydrogenase complex. [PDF]
Pyruvate dehydrogenase kinases (PDKs) from the anaerobic parasitic nematode Ascaris suum and the free-living nematode Caenorhabditis elegans were functionally expressed with hexahistidine tags at their N-termini and purified to apparent homogeneity. Both recombinant PDKs (rPDKs) were dimers, were not autophosphorylated and exhibited similar specific ...
Chen W, Komuniecki PR, Komuniecki R.
europepmc +8 more sources
Subunit structure of dihydrolipoyl transacetylase component of pyruvate dehydrogenase complex from Escherichia coli. [PDF]
Limited tryptic digestion of the pyruvate dehydrogenase complex of Escherichia coli or its dihydrolipoyl transacetylase core cleaves the trypsin-sensitive transacetylase subunits into two large fragments, A (lipoyl domain) and D (subunit binding domain). Release of fragments A from the complex does not significantly
Bleile DM, Munk P, Oliver RM, Reed LJ.
europepmc +7 more sources
The gene encoding dihydrolipoyl transacetylase from Azotobacter vinelandii [PDF]
The gene encoding the dihydrolipoyl transacetylase (E2) component from Azotobacter vinelandii has been cloned in Escherichia coli. High expression of the gene was found when the cells were grown for more than 14 h. The E2 produced was partially active, varying 10 and 90% in different experiments.
Roeland Hanemaaijer+5 more
semanticscholar +7 more sources
Structure of the native pyruvate dehydrogenase complex reveals the mechanism of substrate insertion [PDF]
The pyruvate dehydrogenase complex (PDHc) is a large multienzyme complex that converts pyruvate into acetyl-coenzyme A and in E. coli the core of the PDHc is formed by 24 copies of dihydrolipoyl transacetylase.
Jana Škerlová+4 more
doaj +3 more sources
Interaction of lipoamide dehydrogenase with the dihydrolipoyl transacetylase component of the pyruvate dehydrogenase complex from Azotobacter vinelandii [PDF]
The interaction between lipoamide dehydrogenase (E3) and dihydrolipoyl transacetylase (E2p) from the pyruvate dehydrogenase complex was studied during the reconstitution of monomeric E3 apoenzymes from Azotobacter vinelandii and Pseudomonas fluorescens.
Egbert Schulze+3 more
semanticscholar +6 more sources
A kinetic study of dihydrolipoyl transacetylase from bovine kidney.
The mammalian pyruvate dehydrogenase complex contains a core, consisting of dihydrolipoyl transacetylase, to which pyruvate dehydrogenase and dihydrolipoyl dehydrogenase are joined. This report describes studies on the kinetic mechanism of the transacetylase-catalyzed reaction between [1-14C]acetyl-CoA and dihydrolipoamide.
Peter Butterworth+4 more
semanticscholar +5 more sources
Time‐resolved fluorescence studies on the dihydrolipoyl transacetylase (E2) component of the pyruvate dehydrogenase complex from Azotobacter vinelandii [PDF]
The dihydrolipoyl transacetylase (E2) component of A. vinelandii PDC and its lipoyl domain shows similar dynamic properties as revealed with fluorescence anisotropy decay of lipoyl‐bound IAANS. The lipoyl domain (32.6 kDa), containing three almost identical subdomains shows a mode of rotation characteristic for a protein of about 30 kDa.
Roeland Hanemaaijer+4 more
semanticscholar +5 more sources
DLAT activates EMT to promote HCC metastasis by regulating GLUT1-mediated aerobic glycolysis [PDF]
Background Metabolic reprogramming is a hallmark of hepatocellular carcinoma (HCC) progression, driving aberrant cellular processes in response to pathological stimuli.
Qian Yin+9 more
doaj +3 more sources
p53 enhances elesclomol-Cu-induced cuproptosis in hepatocellular carcinoma via FDXR-mediated FDX1 upregulation [PDF]
BackgroundCuproptosis, a novel cell death pathway mediated by ferredoxin 1 (FDX1) and protein lipoylation, has emerged as a valuable target in cancer therapy.
Xiao Liu+7 more
doaj +3 more sources