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A dependable method for the synthesis of [14C]trehalose
B U Stambuk1, J H Crowe, L M Crowe
1Departamento de Bioquímica, Universidade de S. Paulo, Brazil.
Analytical Biochemistry
|July 1, 1993
Summary
Researchers developed a simple method to create [14C]trehalose using a modified yeast strain. This process efficiently converts [14C]glucose into pure trehalose, offering a reliable tool for scientific research.
Area of Science:
- Biochemistry
- Microbiology
- Metabolic Engineering
Background:
- Trehalose is a crucial disaccharide in yeast, offering stress protection.
- Efficient synthesis of radiolabeled trehalose is vital for metabolic studies.
Purpose of the Study:
- To develop a novel and reliable method for preparing radiolabeled [14C]trehalose.
- To utilize a metabolically engineered yeast strain for enhanced trehalose synthesis.
Main Methods:
- Employing a yeast strain with a deleted phosphoglucoisomerase gene.
- Culturing yeast with exogenously supplied [14C]glucose to induce trehalose accumulation.
- Purification and characterization of the synthesized [14C]trehalose.
Main Results:
- The engineered yeast strain efficiently converts [14C]glucose to [14C]trehalose.
- The synthesized [14C]trehalose is pure and specifically hydrolyzed by trehalase.
- A yield of approximately 35% [14C]trehalose from [14C]glucose was achieved.
Conclusions:
- This method provides a simple, reliable, and efficient means for producing pure [14C]trehalose.
- The engineered yeast strain offers a valuable system for studying trehalose metabolism.
- The developed method facilitates the availability of a key radiotracer for biochemical research.