Inactivation of skeletal glycogen synthetase by diethylpyrocarbonate. 1986

M Signorini, and F Dallocchio, and E Mariotti, and C M Bergamini

Glycogen synthetase from skeletal muscle is rapidly inactivated by DEPC. In the presence of the substrate UDPG only 50% of the enzyme activity is lost. The concomitant addition of both UDPG and the allosteric activator glucose-6-phosphate almost completely prevents the inactivation by DEPC. Since glucose-6-phosphate alone does not prevent the inactivation by DEPC, it is concluded that it is effective through a potentiation of the effects of UDPG, possibly through a conformational change of the enzyme.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D004047 Diethyl Pyrocarbonate Preservative for wines, soft drinks, and fruit juices and a gentle esterifying agent. Diethyl Dicarbonate,Diethyl Oxydiformate,Pyrocarbonic Acid Diethyl Ester,Diethylpyrocarbonate,Ethoxyformic Anhydride,Anhydride, Ethoxyformic,Dicarbonate, Diethyl,Oxydiformate, Diethyl,Pyrocarbonate, Diethyl
D005561 Formates Derivatives of formic acids. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are formed with a single carbon carboxy group. Formic Acids,Acids, Formic
D006006 Glycogen Synthase An enzyme that catalyzes the transfer of D-glucose from UDPglucose into 1,4-alpha-D-glucosyl chains. EC 2.4.1.11. Glycogen (Starch) Synthase,Glycogen Synthetase,Glycogen Synthase I,Synthase D,Synthase I,UDP-Glucose Glycogen Glucosyl Transferase,Synthase, Glycogen,Synthetase, Glycogen,UDP Glucose Glycogen Glucosyl Transferase
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014532 Uridine Diphosphate Glucose A key intermediate in carbohydrate metabolism. Serves as a precursor of glycogen, can be metabolized into UDPgalactose and UDPglucuronic acid which can then be incorporated into polysaccharides as galactose and glucuronic acid. Also serves as a precursor of sucrose lipopolysaccharides, and glycosphingolipids. UDP Glucose,UDPG,Uridine Diphosphoglucose,Diphosphate Glucose, Uridine,Diphosphoglucose, Uridine,Glucose, UDP,Glucose, Uridine Diphosphate

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