Results 11 to 20 of about 76,168 (194)
The inactivation of glycogen phosphorylase is not a prerequisite for the activation of liver glycogen synthase [PDF]
Carlos J. Ciudad+2 more
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The Hysteretic Properties of Glycogen Synthase I [PDF]
Glycogen‐free synthase I from human polymorphonuclear leukocytes is activated by its own substrate, glycogen, in a slow, time‐dependent proces (hysteretic activation). This lag in response to addition of glycogen depends on the concentration of glycogen, pH and temperature.
Henrik Sølling, Viggo Esmann
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Isozymes of glycogen synthase [PDF]
Antisera to rat skeletal muscle glycogen synthase failed to recognize liver glycogen synthase by electroblot analysis. The antisera recognized the enzyme in skeletal muscle, heart, fat, kidney, and brain. The results support the hypothesis that there are at least two isozymes of glycogen synthase, and that most tissues contain a form similar or ...
Harvey R. Kaslow, David D. Lesikar
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Incorporation of phosphate into glycogen by glycogen synthase [PDF]
The storage polymer glycogen normally contains small amounts of covalently attached phosphate as phosphomonoesters at C2, C3 and C6 atoms of glucose residues. In the absence of the laforin phosphatase, as in the rare childhood epilepsy Lafora disease, the phosphorylation level is elevated and is associated with abnormal glycogen structure that ...
Christopher J. Contreras+7 more
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Liver Glycogen Synthase in Rats with a Glycogen‐Storage Disorder [PDF]
1. A strain of rats with a genetically‐determined liver glycogen‐storage disorder (gsd/gsd) caused by a deficiency of liver phosphorylase kinase has a very high concentration of glycogen in the liver with a total glycogen synthase activity higher than in liver of fed normal animals, but only a small amount of the enzyme in the active form.
Colin Watts, Rex S. Malthus
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Glycogen Synthase Kinase‐3 [PDF]
Glycogen synthase kinase-3 (GSK3) is a ubiquitous and promiscuous kinase that has been studied extensively for over four decades. Initial reports beginning in the 1970s described its role in cellular metabolic pathways fundamental to glucose metabolism, but in more recent years the number of reports describing aberrant GSK3 activity in pathological ...
Crouch, P+4 more
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Allosteric Regulation of Glycogen Synthase Controls Glycogen Synthesis in Muscle [PDF]
Glycogen synthase (GS), a key enzyme in glycogen synthesis, is activated by the allosteric stimulator glucose-6-phosphate (G6P) and by dephosphorylation through inactivation of GS kinase-3 with insulin. The relative importance of these two regulatory mechanisms in controlling GS is not established, mainly due to the complex interplay between multiple ...
Kei Sakamoto+9 more
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Crystal Structure of an Archaeal Glycogen Synthase [PDF]
Glycogen and starch synthases are retaining glycosyltransferases that catalyze the transfer of glucosyl residues to the non-reducing end of a growing alpha-1,4-glucan chain, a central process of the carbon/energy metabolism present in almost all living organisms.
Horcajada, Cristina+3 more
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Nuclear glycogen synthase — fact or artifact? [PDF]
According to Oron [FEBS Lett. (1980) 118, 255–258], nuclear glycogen synthase represents an artifact of preparation in rat liver nuclei. We investigated the nuclei isolated from in vitro growing HD33 ascites cells with exclusively cytoplasmic, and from in vivo growing HD33 Ehrlich—Lettré ascites tumor cells with mainly intranuclear, glycogen deposition.
Christof Granzow+2 more
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Glycogen, a stored form of glucose, is an important form of energy for aquatic shellfish, contributing to the flavor and quality of the oyster. The glycogen synthase (GYS) and glycogen synthase kinase 3β (GSK3β) are two major enzymes in the glycogenesis.
Yan Wang+8 more
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