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© Research
Publication : Biochimie

Influence of glucose on the deoxyglucose metabolism in S cerevisiae: detection and identification of deoxyglucose and trehalose derivatives by 1H- and 13C-NMR spectroscopy

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Biochimie - 01 Jan 1993

Wietzerbin J, Hervé M, Un S, Neumann JM, Namane A, Tran-Dinh S

Link to Pubmed [PMID] – 8274535

Biochimie 1993;75(9):825-30

The metabolism of 2-deoxy-D-glucose (DG) in glucose grown repressed Saccharomyces cerevisiae cells was studied in the absence and presence of glucose (Glc) at 30 degrees C in a standard pyrophosphate medium containing 4.5 x 10(7) cells/ml. 1H- and 13C-NMR spectroscopy were successfully used to distinguish and identify several derivatives of DG and trehalose. Using [1-13C]DG, alpha- and beta-DG, alpha- and beta-DG6P, dideoxy-trehalose (DG-DG) and deoxy-trehalose (DG-Glc) can be simultaneously observed in the intracellular medium. The [DG6P]/[DG] ratio is about 5-6. The results seem to indicate the existence of an equilibrium between DG and DG6P, which limits the production of DG6P in cells. Glucose was found to exert a great influence on the metabolism of DG. It favours the formation of DG-DG and DG-Glc.

http://www.ncbi.nlm.nih.gov/pubmed/8274535