Results 11 to 20 of about 128,438 (311)
Haematologica, 2007 Over the past few years the inherited disorders of erythrocyte metabolism have been the object of intensive research which has resulted in a better understanding of their molecular basis. However, curative therapy for red blood cell (RBC) enzyme defects still remains undeveloped.
Alberto Zanella +2 more
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Pyruvate kinase activators for treatment of pyruvate kinase deficiency. [PDF]
Hematology Am Soc Hematol Educ Program, 2023 Abstract Pyruvate kinase (PK) deficiency is a congenital hemolytic anemia with wide-ranging clinical symptoms and complications associated with significant morbidity and reduced health-related quality of life in both children and adults.
Grace RF.
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Studies on the Enolization of Pyruvate by Pyruvate Kinase [PDF]
Journal of Biological Chemistry, 1960 Irwin A. Rose
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Pyruvate kinase phosphatase [PDF]
FEBS Letters, 1981 1. Introduction Liver pyruvate kinase can be phosphorylated and simultaneously inactivated by CAMP-dependent pro- tein kinase; the inactivated enzyme can be reactivated by a multifunctional protein phosphatase (review [ 13). The inactivation of pyruvate kinase has been observed in isolated hepatocytes incubated in the presence of glucagon and in this ...
Mary-Frances Jett +2 more
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A monomeric form of pyruvate kinase in human pyruvate kinase deficiency. [PDF]
Proceedings of the National Academy of Sciences, 1977 A mutant pyruvate kinase (ATP:pyruvate 2-O-phosphotransferase, EC 2.7.1.40) from human erythrocytes which is easily separated into monomers and dimers by gel chromatography is described. Tht mutant enzyme shows almost the same pH optimum and thermostability as normal enzyme, but has a decreased stability on shaking with air, a decreased Km for ...
Toshio Asakura +3 more
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Pyruvate Kinase Deficiency Causing Priapism
Case 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
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The Allosteric Regulation of Pyruvate Kinase [PDF]
Journal 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
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Pyruvate Kinase M2 and Cancer: The Role of PKM2 in Promoting Tumorigenesis
Frontiers 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
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The contribution of two isozymes to the pyruvate kinase activity of Vibrio cholerae: One K+-dependent constitutively active and another K+-independent with essential allosteric activation. [PDF]
PLoS ONE, 2017 In a previous phylogenetic study of the family of pyruvate kinase EC (2.7.1.40), a cluster with Glu117 and another with Lys117 were found (numbered according to the rabbit muscle enzyme).
Carlos Guerrero-Mendiola +4 more
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The allosteric regulation of pyruvate kinase [PDF]
FEBS Letters, 1996 Crystallographic and mutagenesis studies have unravelled the general features of the allosteric transition mechanism in pyruvate kinase. The enzyme displays a dramatic conformational change in going from the T‐ to the R‐state. All three domains forming each subunit of the tetrameric enzyme undergo simultaneous and concerted rotations, in such a way ...
MATTEVI, ANDREA +2 more
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