title: Metabolite profiling studies in Saccharomyces cerevisiae: an assisting tool to prioritize host targets for antiviral drug screening.
abstract: BACKGROUND
  The cellular proteins Pat1p, Lsm1p, and Dhh1p are required for the replication of some positive-strand viruses and therefore are potential targets for new antiviral drugs. To prioritize host targets for antiviral drug screening a comparative metabolome analysis in Saccharomyces cerevisiae reference strain BY4742 Matalpha his3Delta1 leu2Delta0 lys2Delta0 ura3Delta0 and deletion strains pat1Delta, lsm1Delta and dhh1Delta was performed.
  
  
  RESULTS
  GC/MS analysis permitted the quantification of 47 polar metabolites and the identification of 41 of them. Metabolites with significant variation between the strains were identified using partial least squares to latent structures discriminate analysis (PLS-DA). The analysis revealed least differences of pat1Delta to the reference strain as characterized by Euclidian distance of normalized peak areas. The growth rate and specific production rates of ethanol and glycerol were also most similar with this strain.
  
  
  CONCLUSIONS
  From these results we hypothesize that the human analog of yeast Pat1p is most likely the best drug target candidate.
authors.affiliation: Biochemical Engineering Institute, Saarland University, 66123 Saarbrucken, Germany. e.heinzle@mx.uni-saarland.de.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Schneider
authors.forename: Jens Olaf
authors.initials: JO
authors.lastname: Krömer
authors.forename: Christoph
authors.initials: C
authors.lastname: Wittmann
authors.forename: Isabel
authors.initials: I
authors.lastname: Alves-Rodrigues
authors.forename: Andreas
authors.initials: A
authors.lastname: Meyerhans
authors.forename: Juana
authors.initials: J
authors.lastname: Diez
authors.forename: Elmar
authors.initials: E
authors.lastname: Heinzle