A new ADP (UDP)-glucose glucosyltransferase activity in disrupted starch grains

Disrupted potato starch granules obtained in the presence of 8 M urea were shown to increase [14C] glucose incorporation from labeled ADP-glucose or UDP-glucose into starch, as compared to intact grains. Labeled glucose or maltose units were found to be incorporated through a linkage that produced c...

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Detalles Bibliográficos
Autores principales: Tandecarz, J.S., Cardini, C.E.
Formato: JOUR
Materias:
adenosine diphosphate glucose
glucosyltransferase
radioisotope
starch
uridine diphosphate glucose
higher plant
Adenosine Diphosphate Glucose
Glucosyltransferases
Plants
Starch
Uridine Diphosphate Glucose
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0006291X_v86_n3_p620_Tandecarz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Disrupted potato starch granules obtained in the presence of 8 M urea were shown to increase [14C] glucose incorporation from labeled ADP-glucose or UDP-glucose into starch, as compared to intact grains. Labeled glucose or maltose units were found to be incorporated through a linkage that produced cyclic phosphate esters upon mild alkaline treatment and was sensitive to hydrolysis at pH 2.0. Both properties of this linkage strongly resembled those of the pyrophosphate bond of ADP-glucose or UDP-glucose. © 1979.

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