Genome-wide screen for inositol auxotrophy in Saccharomyces cerevisiae implicates lipid metabolism in stress response signaling.
Summary of "Genome-wide screen for inositol auxotrophy in Saccharomyces cerevisiae implicates lipid metabolism in stress response signaling."
Inositol auxotrophy (Ino(-) phenotype) in budding yeast has classically been associated with misregulation of INO1 and other genes involved in lipid metabolism. To identify all non-essential yeast genes that are necessary for growth in the absence of inositol, we carried out a genome-wide phenotypic screening for deletion mutants exhibiting Ino(-) phenotypes under one or more growth conditions. We report the identification of 419 genes, including 385 genes not previously reported, which exhibit this phenotype when deleted. The identified genes are involved in a wide range of cellular processes, but are particularly enriched in those affecting transcription, protein modification, membrane trafficking, diverse stress responses, and lipid metabolism. Among the Ino(-) mutants involved in stress response, many exhibited phenotypes that are strengthened at elevated temperature and/or when choline is present in the medium. The role of inositol in regulation of lipid metabolism and stress response signaling is discussed.
Department of Molecular Biology and Genetics, Cornell University, 249 Biotechnology Building, Ithaca, NY, 14853, USA.
This article was published in the following journal.
Name: Molecular genetics and genomics : MGG
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21136082
- DOI: http://dx.doi.org/10.1007/s00438-010-0592-x
Discoveries on the toxic effects of cysteine accumulation and, particularly, recent findings on the many physiological roles of one of the products of cysteine catabolism, hydrogen sulfide (H2S), are ...
[This corrects the article DOI: 10.1371/journal.ppat.1003981.].
Lager yeast beer production was revolutionized by the introduction of pure culture strains. The first established lager yeast strain is known as the bottom fermenting Saccharomyces carlsbergensis, whi...
We developed an efficient screening method for Saccharomyces cerevisiae strains from environmental isolates. MultiPlex PCR was performed targeting four brewing S. cerevisiae genes (SSU1, AWA1, BIO6, a...
Control of the expression levels of multiple enzymes in transgenic yeasts is essential for the effective production of complex molecules through fermentation. Here, we propose a tunable strategy for t...
A Pilot Trial of the Immunogenicity, and Safety of GI-4000; an Inactivated Recombinant Saccharomyces Cerevisiae Expressing Mutant Ras Protein, as Consolidation Therapy Following Curative Treatment for Stage I-III Non-Small Cell Lung Cancer (NSCLC) With Tu
This is a consolidation therapy trial evaluating GI-4000 in subjects with NSCLC treated with curative intent who are disease free at their first post-treatment restaging assessment.
The purpose of this study is to determine whether myo-inositol and melatonin, or myo-inositol alone, or melatonin alone, are effective in normalizing irregular bleeding and anovulatory cyc...
A relationship between IBD and spondyloarthropathy is well recognized. ASCA ( anti saccharomyces cerevisiae antibodies)are considered to be a serological marker for Crohn's disease and hav...
This pilot study was a randomized, placebo-controlled, clinical trial to measure changes in blood and urine levels of inositol in premature infants at high risk for retinopathy of prematur...
Myo-Inositol is classified as a member of the vitamin B complex. It is a constituent of living cells and is widespread in many food. It is involved in a number of biological processes, inc...
Medical and Biotech [MESH] Definitions
A member of the Rho family of MONOMERIC GTP-BINDING PROTEINS from SACCHAROMYCES CEREVISIAE. It is involved in morphological events related to the cell cycle. This enzyme was formerly listed as EC 126.96.36.199.
Proteins obtained from the species SACCHAROMYCES CEREVISIAE. The function of specific proteins from this organism are the subject of intense scientific interest and have been used to derive basic understanding of the functioning similar proteins in higher eukaryotes.
A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement.
A set of nuclear proteins in SACCHAROMYCES CEREVISIAE that are required for the transcriptional repression of the silent mating type loci. They mediate the formation of silenced CHROMATIN and repress both transcription and recombination at other loci as well. They are comprised of 4 non-homologous, interacting proteins, Sir1p, Sir2p, Sir3p, and Sir4p. Sir2p, an NAD-dependent HISTONE DEACETYLASE, is the founding member of the family of SIRTUINS.
A protein kinase encoded by the Saccharomyces cerevisiae CDC28 gene and required for progression from the G1 PHASE to the S PHASE in the CELL CYCLE.