Insight into the Kluyveromyces lactis Pdr1p regulon

Insight into the Kluyveromyces lactis Pdr1p regulon.

The overexpression of efflux pumps is an important mechanism leading to the development of multidrug resistance phenomenon. The transcription factor KlPdr1p, belonging to the Zn2Cys6 family, is a central regulator of efflux pump expression in Kluyveromyces lactis. To better understand how KlPDR1-mediated drug resistance is achieved in K. lactis, we used DNA microarrays to identify genes whose e...

Regulation of lactose transport in Kluyveromyces lactis

Kluyveromyces lactis is able to ferment lactose and it is considered as an alternative model for biochemical, physiological and genetic studies in nonSaccharomyces yeasts. Understanding the mechanisms of lactose uptake and the regulation involved in the transport is an important step towards better biotechnological applications. The transport of lactose in K. lactis is mediated by a membrane pe...

Reoxidation of cytosolic NADPH in Kluyveromyces lactis.

Saccharomyces cerevisiae and Kluyveromyces lactis are considered to be the prototypes of two distinct metabolic models of facultatively-aerobic yeasts: Crabtree-positive/fermentative and Crabtree-negative/respiratory, respectively. Our group had previously proposed that one of the molecular keys supporting this difference lies in the mechanisms involved in the reoxidation of the NADPH produced ...

Mitophagy: New Insight into the Cardiovascular Aging  

Gene Responses to Oxygen Availability in Kluyveromyces lactis: an Insight on the Evolution of the Oxygen-Responding System in Yeast

The whole-genome duplication (WGD) may provide a basis for the emergence of the very characteristic life style of Saccharomyces cerevisiae-its fermentation-oriented physiology and its capacity of growing in anaerobiosis. Indeed, we found an over-representation of oxygen-responding genes in the ohnologs of S. cerevisiae. Many of these duplicated genes are present as aerobic/hypoxic(anaerobic) pa...