Periodic heat production by oscillating glycolysis in a cytoplasmic medium extracted from yeast

FEBS Letters

Müller, S.C.²  Lamprecht, I.¹  Schaarschmidt, B.¹  Hess, B.²  Plesser, T.² 

[1] Institut für Biophysik der Freien Universität Berlin, Thielallee 63, 1000 Berlin, Germany;Max-Planck-Institut für Ernährungsphysiologie, Rheinlanddamm 201, 4600 Dortmund 1, FRG

关键词: Glycolysis;    Oscillation;    Microcalorimetry;    Heat production;    Enthalpy;   

DOI  :  10.1016/0014-5793(85)80838-3

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The rate of heat production in a periodically glycolysing cell-free cytoplasmic medium extracted from yeast Saccharomyces cerevisiae is measured with a batch calorimeter. The rate exhibits periodic variations of approx. 10% of the average heat production rate of about 54 per minute. From this rate and the enthalpy change fro glycolysis a glucose degradation rate of 0.43 is calculated. The value fits into the ‘oscillatory window’ determined by a glucose injection technique.

【 授权许可】

Unknown