Results 61 to 70 of about 25,845 (262)

Insights Into the Carboxyltransferase Reaction of Pyruvate Carboxylase From the Structures of Bound Product and Intermediate Analogs [PDF]

open access: yes, 2013
Pyruvate carboxylase (PC) is a biotin-dependent enzyme that catalyzes the MgATP- and bicarbonate-dependent carboxylation of pyruvate to oxaloacetate, an important anaplerotic reaction in central metabolism.
Lietzan, Adam D., Maurice, Martin St.
core   +2 more sources

Insect‐Derived Bioactives for Glycemic Control and Gut Health: A Review

open access: yesFood Frontiers, EarlyView.
Insect‐derived bioactive compounds (e.g., peptides, polysaccharides) effectively regulate blood glucose through dual mechanisms: directly inhibiting carbohydrate‐digesting enzymes and glucose transporters, and indirectly modulating gut microbiota to enhance intestinal barrier integrity.
Chaoyi Lv   +5 more
wiley   +1 more source

Phosphoenolpyruvate carboxylase (PEPC) is essential for the glycolytic pathway and parasite proliferation in Babesia gibsoni

open access: yesAnimal Diseases
Apicomplexan parasites predominantly generate ATP and lactic acid through glycolysis and anaerobic glucose metabolism, incorporating CO2 into glycolysis via a stage-dependent phosphoenolpyruvate carboxylase (PEPC) mechanism.
Dong-Fang Li   +9 more
doaj   +1 more source

Enhanced tolerance to drought in transgenic rice plants overexpressing C4 photosynthesis enzymes

open access: yesCrop Journal, 2013
Maize-specific pyruvate orthophosphate dikinase (PPDK) was overexpressed in rice independently or in combination with the maize C4-specific phosphoenolpyruvate carboxylase (PCK). The wild-type (WT) cultivar Kitaake and transgenic plants were evaluated in
Jun-Fei Gu, Ming Qiu, Jian-Chang Yang
doaj   +1 more source

Diurnal Regulation of Phosphoenolpyruvate Carboxylase from Crassula [PDF]

open access: yesPlant Physiology, 1985
Phosphoenolpyruvate carboxylase appears to be located in or associated with the chloroplasts of Crassula. As has been found with this enzyme in other CAM plants, a crude extract of leaves gathered during darkness and rapidly assayed for phosphoenolpyruvate carboxylase (PEPc) activity is relatively insensitive to inhibition by malate. After illumination
M X, Wu, R T, Wedding
openaire   +2 more sources

LC-MS proteomics analysis of the iInsulin/IGF-1-deficient Caenorhabditis elegans daf-2(e1370) mutant reveals extensive restructuring of intermediary metabolism [PDF]

open access: yes, 2014
The insulin/IGF-1 receptor is a major known determinant of dauer formation, stress resistance, longevity, and metabolism in Caenorhabditis elegans. In the past, whole-genome transcript profiling was used extensively to study differential gene expression ...
Braeckman, Bart   +7 more
core   +2 more sources

Preharvest potassium silicate treatments influence the morphological appearance and enhance nutritional composition of almond kernels

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The almond industry requires new strategies to improve almond kernel quality. The use of biostimulants such as potassium silicate (KSi) is an eco‐friendly and non‐polluting alternative. The aim of this work was to investigate the preharvest application of KSi solutions at 2 and 20 mmol L−1 to ‘Peraleja’ almond trees during two ...
Vicente Serna‐Escolano   +4 more
wiley   +1 more source

Phosphoenolpyruvate Carboxylase from Spinach Leaf Tissue [PDF]

open access: yesPlant Physiology, 1974
Phosphoenolpyruvate carboxylase (EC 4.1.1.31), partially purified from spinach (Spinacia oleracea) leaves, is inhibited by SO(3) (2-) ion. The inhibition is competitive or mixed type with respect to HCO(3) (-) (Ki = 17 mm), and noncompetitive with respect to phosphoenolpyruvic acid (Ki = 11 mm), Mg(2+) (Ki = 10 mm), and Mn(2+) (Ki = 2.4 mm).
S K, Mukerji, S F, Yang
openaire   +2 more sources

Phosphoenolpyruvate Carboxykinase Is Involved in the Decarboxylation of Aspartate in the Bundle Sheath of Maize [PDF]

open access: yes, 1999
We recently showed that maize (Zea mays L.) leaves contain appreciable amounts of phosphoenolpyruvate carboxykinase (PEPCK; R.P. Walker, R.M. Acheson, L.I. Técsi, R.C. Leegood [1997] Aust J Plant Physiol 24: 459–468).
Chen, Z.   +3 more
core   +2 more sources

The return of metabolism: biochemistry and physiology of glycolysis

open access: yesBiological Reviews, EarlyView.
ABSTRACT Glycolysis is a fundamental metabolic pathway central to the bioenergetics and physiology of virtually all living organisms. In this comprehensive review, we explore the intricate biochemical principles and evolutionary origins of glycolytic pathways, from the classical Embden–Meyerhof–Parnas (EMP) pathway in humans to various prokaryotic and ...
Nana‐Maria Grüning   +19 more
wiley   +1 more source

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