[Aminoacyl-tRNA-synthetases and their high molecular weight complexes in the regenerating rat liver]. 1984

A D Iaremchuk, and L E Tarasiavichene, and T P Kondratiuk, and A V El'skaia

Glutamyl- and lysyl-tRNA synthetase activities in total preparations and high-molecular complexes from rat liver increase 21 h after partial hepatectomy. Glutamyl-tRNA synthetase has been highly purified from normal and regenerating liver. Km, Vmax values and molecular activity were practically the same for both enzyme preparations. Total methyltransferase activity and that as a part of high-molecular complexes increase 1.5 fold 21 h after the operation but the changes of individual methyltransferase activities differ. The level of tRNA methylation in vivo is also higher during regeneration. Proteinkinases of high-molecular complexes from regenerating liver are sensitive to cyclic AMP and GMP in contrast to control.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008115 Liver Regeneration Repair or renewal of hepatic tissue. Liver Regenerations,Regeneration, Liver,Regenerations, Liver
D008745 Methylation Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) Methylations
D008780 Methyltransferases A subclass of enzymes of the transferase class that catalyze the transfer of a methyl group from one compound to another. (Dorland, 28th ed) EC 2.1.1. Methyltransferase
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D011494 Protein Kinases A family of enzymes that catalyze the conversion of ATP and a protein to ADP and a phosphoprotein. Protein Kinase,Kinase, Protein,Kinases, Protein
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D005975 Glutamate-tRNA Ligase An enzyme that activates glutamic acid with its specific transfer RNA. EC 6.1.1.17. Glutamyl T RNA Synthetase,Glu-tRNA Ligase,Glutamyl-tRNA Synthetase,Glu tRNA Ligase,Glutamate tRNA Ligase,Glutamyl tRNA Synthetase,Ligase, Glu-tRNA,Ligase, Glutamate-tRNA,Synthetase, Glutamyl-tRNA
D006498 Hepatectomy Excision of all or part of the liver. (Dorland, 28th ed) Hepatectomies

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