Characterization of thiamine uptake and utilization in Candida spp. subjected to oxidative stress.
Kraków, Poland. In Acta Biochim Pol, 18 Sep 2015
As compared to S. cerevisiae, Candida strains exposed to oxidative stress showed: (i) a much higher dependence on exogenous thiamine; (ii) an increased demand for thiamine diphosphate (TDP) and TDP-dependent enzyme, transketolase; (iii) no changes in gene expression of selected stress markers - superoxide dismutase and catalase - depending on thiamine availability in medium; (iv) a similar decrease of reactive oxygen species (ROS) generation in the presence of thiamine.
Structure and functioning mechanism of transketolase.
Moscow, Russia. In Biochim Biophys Acta, Sep 2014
Transketolase, discovered independently by Racker and Horecker in 1953 (and named by Racker) , did not receive much attention until 1992, when crystal X-ray structure analysis of the enzyme from Saccharomyces cerevisiae was performed .
Engineering stereoselectivity of ThDP-dependent enzymes.
London, United Kingdom. In Febs J, 2013
Both structurally different enzyme families differ also in stereoselectivity: enzymes from the decarboxylase family are predominantly R-selective, whereas those from the transketolase family are S-selective.
[Vitamin B1 (thiamine)].
Dijon, France. In Rev Prat, 2013
The biological exploration of vitamin B1 status is based on the measurement of thiamine pyrophosphate concentration or of the activity of a thiamine-dependent enzyme, transketolase, in erythrocytes.
Riboneogenesis in yeast.
Princeton, United States. In Cell, 2011
Riboneogenesis begins with synthesis, by the combined action of transketolase and aldolase, of the seven-carbon bisphosphorylated sugar sedoheptulose-1,7-bisphosphate.