Results 21 to 30 of about 27,301 (195)
The citrate cleavage pathway and lipogenesis in rat adipose tissue: replenishment of oxaloacetate
Journal of Lipid Research, 1967 Fatty acid synthesis via the citrate cleavage pathway requires the continual replenishment of oxaloacetate within the mitochondria, probably by carboxylation of pyruvate.Malic enzyme, although present in adipose tissue, is completely localized in the ...
F.J. Ballard, Richard W. Hanson
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Pyruvate anaplerosis is a targetable vulnerability in persistent leukaemic stem cells
Nature Communications, 2023 Deregulated oxidative metabolism is a hallmark of leukaemia. While tyrosine kinase inhibitors (TKIs) such as imatinib have increased survival of chronic myeloid leukaemia (CML) patients, they fail to eradicate disease-initiating leukemic stem cells (LSCs)
Kevin M. Rattigan +18 more
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Pyruvate Carboxylase in Rhodopseudomonas spheroides [PDF]
Journal of General Microbiology, 1969 SUMMARY: Unlike some other photosynthetic bacteria, Rhodopseudomonas spheroides directly carboxylates pyruvate in a reaction catalysed by a pyruvate carboxylase (E.C. 6·4.1·1). A partially purified preparation of the enzyme was acetylCoA-dependent. No phosphoenolpyruvate synthetase or phosphoenolpyruvate carboxylase activity was detected in extracts of
J, Payne, J G, Morris
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Metabolic Engineering Communications, 2015 The effect of pyruvate kinase gene (pyk) deletion on the physiology of Corynebacterium glutamicum ATCC13032 was investigated under biotin-sufficient, non-glutamate-producing conditions.
Kazunori Sawada +5 more
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Frontiers in Physiology, 2019 It is hypothesized that glucokinase (GCK) is the glucose sensor not only for regulation of insulin release by pancreatic β-cells, but also for the rest of the cells that contribute to glucose homeostasis in mammals. This includes other cells in endocrine
Franz M. Matschinsky, David F. Wilson
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The Metabolic Fates of Pyruvate in Normal and Neoplastic Cells
Cells, 2021 Pyruvate occupies a central metabolic node by virtue of its position at the crossroads of glycolysis and the tricarboxylic acid (TCA) cycle and its production and fate being governed by numerous cell-intrinsic and extrinsic factors.
Edward V. Prochownik, Huabo Wang
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Pyruvate carboxylase promotes thyroid cancer aggressiveness through fatty acid synthesis
BMC Cancer, 2021 Background Pyruvate carboxylase (PC) is an important anaplerotic enzyme in the tricarboxylic acid cycle (TCA) in cancer cells. Although PC overexpression has been observed in thyroid cancer (TC), the mechanisms involved in the carcinogenic effects of PC ...
Chang Liu +4 more
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A distinct holoenzyme organization for two-subunit pyruvate carboxylase
Nature Communications, 2016 Pyruvate carboxylases are homotetrameric enzymes in eukaryotes and most bacteria. Here, the authors report the structure of an unusual two-subunit form of the enzyme from the Gram-negative bacterium Methylobacillus flagellates, revealing an unexpected ...
Philip H. Choi +6 more
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Frontiers in Bioengineering and Biotechnology, 2021 Wild-type C. glutamicum ATCC 13032 is known to possess two enzymes with anaplerotic (C4-directed) carboxylation activity, namely phosphoenolpyruvate carboxylase (PEPCx) and pyruvate carboxylase (PCx). On the other hand, C3-directed decarboxylation can be
Jannick Kappelmann +8 more
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Pyruvate carboxylase deficiency: An underestimated cause of lactic acidosis
Molecular Genetics and Metabolism Reports, 2015 Pyruvate carboxylase (PC) is a biotin-containing mitochondrial enzyme that catalyzes the conversion of pyruvate to oxaloacetate, thereby being involved in gluconeogenesis and in energy production through replenishment of the tricarboxylic acid (TCA ...
F. Habarou +13 more
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