Results 11 to 20 of about 142,324 (262)

The Allosteric Regulation of Pyruvate Kinase [PDF]

open access: yesJournal of Biological Chemistry, 2000
Pyruvate kinase (PK) is critical for the regulation of the glycolytic pathway. The regulatory properties of Escherichia coli were investigated by mutating six charged residues involved in interdomain salt bridges (Arg(271), Arg(292), Asp(297), and Lys(413)) and in the binding of the allosteric activator (Lys(382) and Arg(431)).
VALENTINI, GIOVANNA   +5 more
openaire   +4 more sources

Ethyl pyruvate protects SHSY5Y cells against 6-hydroxydopamine-induced neurotoxicity by upregulating autophagy

open access: yesPLoS ONE, 2023
Parkinson disease is a chronic progressive neurodegenerative disorder with a prevalence that increases with age. The glycolytic end-product pyruvate, has antioxidant and neuroprotective feature. Here, we investigated the effects of ethyl pyruvate (EP), a
Yuening Luo, Kazuichi Sakamoto
doaj   +2 more sources

Crystal structure of Cryptosporidium parvum pyruvate kinase. [PDF]

open access: yesPLoS ONE, 2012
Pyruvate kinase plays a critical role in cellular metabolism of glucose by serving as a major regulator of glycolysis. This tetrameric enzyme is allosterically regulated by different effector molecules, mainly phosphosugars.
William J Cook   +3 more
doaj   +1 more source

DETECTION OF ENOLASE AND PYRUVATE KINASE ENZYMES FROM FLUORIDE SENSITIVE AND FLUORIDE RESISTANCE STREPTOCOCCUS MUTANS BY USING PCR. [PDF]

open access: yesJournal of Bioscience and Applied Research
Background: This study aimed to detect enolase and pyruvate kinase, key metabolic enzymes in glycolysis, in fluoride-resistant and fluoride-sensitive Streptococcus mutans strains isolated from diabetic dental caries. Enolase catalyzes the conversion of 2-
Nuha Elhage   +2 more
doaj   +1 more source

Transcriptional and Biochemical Characterization of Cytosolic Pyruvate Kinases in Arabidopsis thaliana

open access: yesPlants, 2020
Glycolysis is a central catabolic pathway in every living organism with an essential role in carbohydrate breakdown and ATP synthesis, thereby providing pyruvate to the tricarboxylic acid cycle (TCA cycle).
Sabine Wulfert   +2 more
doaj   +1 more source

From Glucose to Lactate and Transiting Intermediates Through Mitochondria, Bypassing Pyruvate Kinase: Considerations for Cells Exhibiting Dimeric PKM2 or Otherwise Inhibited Kinase Activity

open access: yesFrontiers in Physiology, 2020
A metabolic hallmark of many cancers is the increase in glucose consumption coupled to excessive lactate production. Mindful that L-lactate originates only from pyruvate, the question arises as to how can this be sustained in those tissues where pyruvate
Christos Chinopoulos
doaj   +1 more source

Rapid inhibition of pyruvate dehydrogenase: an initiating event in high dietary fat-induced loss of metabolic flexibility in the heart. [PDF]

open access: yesPLoS ONE, 2013
Cardiac function depends on the ability to switch between fatty acid and glucose oxidation for energy production in response to changes in substrate availability and energetic stress.
Clair Crewe   +2 more
doaj   +1 more source

Pyruvate Kinase M2 and Cancer: The Role of PKM2 in Promoting Tumorigenesis

open access: yesFrontiers in Oncology, 2020
Pyruvate kinase plays a pivotal role in regulating cell metabolism. The final and rate-limiting step of glycolysis is the conversion of Phosphoenolpyruvate (PEP) to Pyruvate, which is catalyzed by Pyruvate Kinase. There are four isomeric, tissue-specific
Kulsoom Zahra   +4 more
doaj   +1 more source

Pyruvate Kinase Deficiency Causing Priapism

open access: yesCase Reports in Hematology, 2023
Pyruvate kinase deficiency (PKD) is an autosomal recessive defect of the enzyme pyruvate kinase (PK) which is involved in catalyzing a reaction that produces ATP in the glycolytic pathway. It is the most common defect of the glycolytic pathway associated
Vinay Hanyalu Shankar   +6 more
doaj   +1 more source

Specificity of pyruvate kinase [PDF]

open access: yesBiochimica et Biophysica Acta, 1959
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/32459/1/0000543 ...
openaire   +3 more sources

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