Biosynthesis of glycogen from uridine diphosphate glucose

An enzyme which leads to the formation of glycogen according to the equation: UDPG + primer → UDP + glucosyl α (1 → 4) primer has been studied. The optimal conditions for activity were determined with a partially purified preparation from rat muscle. The reaction requires the presence of a polysacch...

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Autores principales: Leloir, L.F., Olavarría, J.M., Goldemberg, S.H., Carminatti, H.
Formato: JOUR
Materias:
glycogen
nucleoside
nucleotide
article
GLYCOGEN/metabolism
metabolism
muscle
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
Glycogen
Muscles
Nucleosides
Nucleotides
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00039861_v81_n2_p508_Leloir
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00039861_v81_n2_p508_Leloir
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spelling todo:paper_00039861_v81_n2_p508_Leloir2023-10-03T13:57:07Z Biosynthesis of glycogen from uridine diphosphate glucose Leloir, L.F. Olavarría, J.M. Goldemberg, S.H. Carminatti, H. glycogen nucleoside nucleotide article GLYCOGEN/metabolism metabolism muscle MUSCLES/metabolism NUCLEOSIDES AND NUCLEOTIDES/metabolism GLYCOGEN/metabolism MUSCLES/metabolism NUCLEOSIDES AND NUCLEOTIDES/metabolism Glycogen Muscles Nucleosides Nucleotides An enzyme which leads to the formation of glycogen according to the equation: UDPG + primer → UDP + glucosyl α (1 → 4) primer has been studied. The optimal conditions for activity were determined with a partially purified preparation from rat muscle. The reaction requires the presence of a polysaccharide as primer and is strongly activated by hexose 6-phosphates. Using UDPG labeled in the glucose moiety, it was found that the radioactivity was transferred to the glycogen from which it could be removed as maltose with β-amylase or as G-1-P with phosphorylase. Thus it seems that the glucose residue becomes linked α (1 → 4) to the polysaccharide. Several inhibitors were tested as well as the occurrence of the enzyme in different organs. © 1959. Fil:Goldemberg, S.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Carminatti, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00039861_v81_n2_p508_Leloir
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic glycogen
nucleoside
nucleotide
article
GLYCOGEN/metabolism
metabolism
muscle
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
GLYCOGEN/metabolism
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
Glycogen
Muscles
Nucleosides
Nucleotides
spellingShingle glycogen
nucleoside
nucleotide
article
GLYCOGEN/metabolism
metabolism
muscle
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
GLYCOGEN/metabolism
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
Glycogen
Muscles
Nucleosides
Nucleotides
Leloir, L.F.
Olavarría, J.M.
Goldemberg, S.H.
Carminatti, H.
Biosynthesis of glycogen from uridine diphosphate glucose
topic_facet glycogen
nucleoside
nucleotide
article
GLYCOGEN/metabolism
metabolism
muscle
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
GLYCOGEN/metabolism
MUSCLES/metabolism
NUCLEOSIDES AND NUCLEOTIDES/metabolism
Glycogen
Muscles
Nucleosides
Nucleotides
description An enzyme which leads to the formation of glycogen according to the equation: UDPG + primer → UDP + glucosyl α (1 → 4) primer has been studied. The optimal conditions for activity were determined with a partially purified preparation from rat muscle. The reaction requires the presence of a polysaccharide as primer and is strongly activated by hexose 6-phosphates. Using UDPG labeled in the glucose moiety, it was found that the radioactivity was transferred to the glycogen from which it could be removed as maltose with β-amylase or as G-1-P with phosphorylase. Thus it seems that the glucose residue becomes linked α (1 → 4) to the polysaccharide. Several inhibitors were tested as well as the occurrence of the enzyme in different organs. © 1959.
format JOUR
author Leloir, L.F.
Olavarría, J.M.
Goldemberg, S.H.
Carminatti, H.
author_facet Leloir, L.F.
Olavarría, J.M.
Goldemberg, S.H.
Carminatti, H.
author_sort Leloir, L.F.
title Biosynthesis of glycogen from uridine diphosphate glucose
title_short Biosynthesis of glycogen from uridine diphosphate glucose
title_full Biosynthesis of glycogen from uridine diphosphate glucose
title_fullStr Biosynthesis of glycogen from uridine diphosphate glucose
title_full_unstemmed Biosynthesis of glycogen from uridine diphosphate glucose
title_sort biosynthesis of glycogen from uridine diphosphate glucose
url http://hdl.handle.net/20.500.12110/paper_00039861_v81_n2_p508_Leloir
work_keys_str_mv AT leloirlf biosynthesisofglycogenfromuridinediphosphateglucose
AT olavarriajm biosynthesisofglycogenfromuridinediphosphateglucose
AT goldembergsh biosynthesisofglycogenfromuridinediphosphateglucose
AT carminattih biosynthesisofglycogenfromuridinediphosphateglucose
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