by showing how Bayesian networks can describe interactions between genes. We then describe a method for recovering gene interactions from microarray data using tools for learning Bayesian networks. Finally, we demonstrate this method on the S. cerevisiae cell-cycle measurements of Spellman et al. (1998). Key

from peptides obtained from the enzymatically digested total proteins of E. coli and S. cerevisiae cells allowed matchmg of the spectra to amino acid sequences within proteins of these organisms. The approach described in this manuscript provides a convenient method to interpret tandem mass spectra

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a b s t r a c t An inexpensive and non-toxic magnetically responsive biocatalyst was prepared by ferrofluid modification of Saccharomyces cerevisiae cells. The prepared biocatalyst enabled efficient decomposition of hydrogen peroxide (HP) and sucrose conversion, due to the presence of active

Abstract. The morphology of three Saccharomyces cerevisiae strains, all lacking chitin synthase 1 (Chsl) and two of them deficient in either Chs3 (calRI mutation) or Chs2 was observed by light and electron microscopy. Cells deficient in Chs2 showed clumpy growth and aberrant shape and size

In wild-type yeast mitochondrial inheritance occurs early in the cell cycle concomitant with bud emergence. Cells lacking the PTC1 gene initially produce buds without a mitochondrial compartment; however, these buds later receive part of the mitochondrial network from the mother cell. Thus

Altered intracellular calcium homeostasis and endoplasmic reticulum redox state in

Activation of plasma membrane H(+)-ATPase and expression of PMA1 and PMA2 genes in Saccharomyces cerevisiae cells grown at supraoptimal temperatures.

Exposure to carcinogenic alkylating agents, oxidizing agents, and ionizing radiation modulates transcript levels for over one third of Saccharomyces cerevisiae’s 6,200 genes. Computational analysis delineates groups of coregulated genes whose upstream regions bear known and novel regulatory

for relative protein quantitation using MS. Other elegant approaches use cell-culture enrichment with a stable isotope-labeled amino acid, including arginine (5), lysine (6), tyrosine (7), and leucine (8), for in vivo incorporation of a mass difference to support relative quantitation. This circumvents