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Book Control of Cell Division by Nutrients  and ER Stress Signaling in Saccharomyces Cerevisiae

Download or read book Control of Cell Division by Nutrients and ER Stress Signaling in Saccharomyces Cerevisiae written by Jinbai Guo and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell cycle progression of Saccharomyces cerevisiae cells was monitored in continuous cultures limited for glucose or nitrogen. The G1 cell cycle phase, before initiation of DNA replication, did not exclusively expand when growth rate decreased. Especially during nitrogen limitation, non-G1 phases expanded almost as much as G1. In addition, cell size remained constant as a function of growth rate. These results contrast with current views that growth requirements are met before initiation of DNA replication, and suggest that distinct nutrient limitations differentially impinge on cell cycle progression. Therefore, multiple mechanisms are hypothesized to regulate the coordination of cell growth and cell division. Genetic interactions were identified between the dose-dependent cell-cycle regulator 2 (DCR2) phosphatase and genes involving in secretion/unfolded protein response pathway, including IRE1, through a genome-wide dominant negative genetic approach. Accumulation of unfolded proteins in the endoplasmic reticulum triggers the unfolded protein response (UPR). How the UPR is downregulated is not well understood. Inositol requirement 1 (IRE1) is an endoplasmic reticulum transmembrane UPR sensor in Saccharomyces cerevisiae. When the UPR is triggered, Ire1p is autophosphorylated, on Ser 840 and Ser 841, inducing the cytosolic endonuclease activity of Ire1p, thereby initiating the splicing and translational de-repression of HAC1 mRNA. Homologous to Atf/Creb1 (Hac1p) activates UPR transcription. We found that that Dcr2p phosphatase functionally and physically interacts with Ire1p. Overexpression of DCR2, but not of a catalytically inactive DCR2 allele, significantly delays HAC1 splicing and sensitizes cells to the UPR. Furthermore, Dcr2p physically interacts in vivo with Ire1p-S840E, S841E, which mimics phosphorylated Ire1p, and Dcr2p dephosphorylates Ire1p in vitro. Our results are consistent with de-phosphorylation of Ire1p being a mechanism for antagonizing UPR signaling.

Book Regulation of G1 Phase Progression

Download or read book Regulation of G1 Phase Progression written by Johannes Boonstra and published by Springer Science & Business Media. This book was released on 2003-09-30 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this contribution, several specialists describe the current knowledge on the molecular networks that regulate cell cycle progression, with an emphasis on the G1 phase of the cell cycle. The first part of Regulation of G1 Phase Progression is concerned with the individual molecules that form the network, including cyclins, cyclin-dependent kinases, inhibitors of these kinases and retinoblastoma and p53. The second section describes the signaling cascades by which external factors influence the cell cycle network, including mitogens, the extracellular matrix, nutrients and oxygen radicals. The last section describes the effects of specific external conditions on cell cycle progression and are presented such as serum starvation and subsequent re-addition and stress conditions (heat, osmolarity). The final two chapters describe the relation between cell cycle progression with cell differentiation and with apoptosis.

Book Stress Activated Protein Kinases

Download or read book Stress Activated Protein Kinases written by Francesc Posas and published by Springer Science & Business Media. This book was released on 2008-01-24 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book leading researchers in the field discuss the state-of-the-art of many aspects of SAPK signaling in various systems from yeast to mammals. These include various chapters on regulatory mechanisms as well as the contribution of the SAPK signaling pathways to processes such as gene expression, metabolism, cell cycle regulation, immune responses and tumorigenesis. Written by international experts, the book will appeal to cell biologists and biochemists.

Book Yeast Stress Responses

    Book Details:
  • Author : Stefan Hohmann
  • Publisher : Springer Science & Business Media
  • Release : 2007-10-23
  • ISBN : 3540456112
  • Pages : 398 pages

Download or read book Yeast Stress Responses written by Stefan Hohmann and published by Springer Science & Business Media. This book was released on 2007-10-23 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every cell has developed mechanisms to respond to changes in its environment and to adapt its growth and metabolism to unfavorable conditions. The unicellular eukaryote yeast has long proven as a particularly useful model system for the analysis of cellular stress responses, and the completion of the yeast genome sequence has only added to its power This volume comprehensively reviews both the basic features of the yeast genral stress response and the specific adapations to different stress types (nutrient depletion, osmotic and heat shock as well as salt and oxidative stress). It includes the latest findings in the field and discusses the implications for the analysis of stress response mechanisms in higher eukaryotes as well.

Book DNA and Free Radicals

    Book Details:
  • Author : Barry Halliwell
  • Publisher : Prentice Hall PTR
  • Release : 1993
  • ISBN :
  • Pages : 366 pages

Download or read book DNA and Free Radicals written by Barry Halliwell and published by Prentice Hall PTR. This book was released on 1993 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by renowned biologists and medical scientists specializing in the field, this volume offers a comprehensive account of the role of oxidative stress and DNA damage in human disease. Emphasizes the role played by free radicals; examines the fundamental mechanisms underlying the pathology of human diseases; shows how DNA is an important target in cellular damage; and outlines the pioneering studies relating to the chemistry of DNA damage. MARKETS: " For research and development personnel in academia and industry involved in investigating drugs and toxic compounds; and for pharmacologists, pathologists, oncologists, chemotherapists, biochemists, chemists, physiologists, biologists, and all those interested in DNA or free radical research.

Book The Molecular Biology of the Yeast Saccharomyces  Life Cycle and Inheritance

Download or read book The Molecular Biology of the Yeast Saccharomyces Life Cycle and Inheritance written by Jeffrey N. Strathern and published by . This book was released on 1981 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Regulation of the Cell Division Cycle by Forkhead Proteins in Saccharomyces Cerevisiae

Download or read book The Regulation of the Cell Division Cycle by Forkhead Proteins in Saccharomyces Cerevisiae written by Aline Pic-Taylor and published by . This book was released on 2001 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Tobacco BY 2 Cells

Download or read book Tobacco BY 2 Cells written by Toshiyuki Nagata and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first compilation of a wealth of knowledge on tobacco BY-2 cells, often cited as the HeLa cell line of higher plants. Basic issues of cell cycle progression, cytokinesis, cell organization and factors that are involved in these processes are covered in detail. Since the tobacco cell line is used as a tool for research in molecular and cellular biology, several chapters on such studies are also included. Further, changes of primary and secondary metabolites during culture and factors that affect these processes are treated. Last but not least, the so far unpublished historical background of the BY-2 cell line is described. This volume is a must for any scientist working in the field of plant biology.

Book The Molecular Biology of Schizosaccharomyces pombe

Download or read book The Molecular Biology of Schizosaccharomyces pombe written by Richard Egel and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fission yeast Schizosaccharomyces pombe is the favoured tool of many productive research groups throughout the world, serving as a useful model for fundamental principles and mechanisms, such as genome organization, differential gene regulation, cell-cycle control, signal transduction, or cellular morphogenesis. This book collates the current state of knowledge derived from molecular studies in this simple eukaryotic microorganism. The entire sequence of its genome has been completed, emphasizing the comparative value and model status of this yeast. The individual chapters, highlighting up-to-date views on prominent aspects of molecular organization, were written by active research scientists, presenting the results of their investigations to other workers in neighbouring fields. This book intends to serve the fission yeast community as a handy source of reference for years to come. It will also be of particular value to the ever-increasing number of researchers starting to look into fission yeast affairs for comparative reasons from other platforms of molecular genetics and cell biology.

Book Cellular Quiescence

    Book Details:
  • Author : H. Daniel Lacorazza
  • Publisher : Humana Press
  • Release : 2017-10-18
  • ISBN : 9781493973705
  • Pages : 303 pages

Download or read book Cellular Quiescence written by H. Daniel Lacorazza and published by Humana Press. This book was released on 2017-10-18 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This detailed volume explores methods and protocols that aim to increase our understanding of how cells enter a quiescent state during homeostasis and how cells exit quiescence and re-enter differentiating cell divisions to restore damaged tissues, essential for developing new approaches in regenerative medicine in the future. The chapters in this book were designed to address cellular quiescence in prokaryote and eukaryote organisms, detection of quiescence (Hoechst/pyronin Y, FUCCI, CFSE, BrdU, H2B-GFP, CyTOF), quiescence in stem cells (skin, intestinal, neuronal, hematopoietic), genomic regulation (gene expression, transcription factors, lncRNA, RNA methylation), as well as analysis of the heterogeneity of quiescence by computer modeling. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Cellular Quiescence: Methods and Protocols offers a broad view of basic and cutting-edge technology to inspire research in this emerging field of cell biology.

Book The Plant Cell Cycle

    Book Details:
  • Author : Dirk Inzé
  • Publisher : Springer Science & Business Media
  • Release : 2011-06-27
  • ISBN : 9401009368
  • Pages : 240 pages

Download or read book The Plant Cell Cycle written by Dirk Inzé and published by Springer Science & Business Media. This book was released on 2011-06-27 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the study of the plant cell cycle has become of major interest, not only to scientists working on cell division sensu strictu , but also to scientists dealing with plant hormones, development and environmental effects on growth. The book The Plant Cell Cycle is a very timely contribution to this exploding field. Outstanding contributors reviewed, not only knowledge on the most important classes of cell cycle regulators, but also summarized the various processes in which cell cycle control plays a pivotal role. The central role of the cell cycle makes this book an absolute must for plant molecular biologists.

Book Metabolism and Molecular Physiology of Saccharomyces Cerevisiae

Download or read book Metabolism and Molecular Physiology of Saccharomyces Cerevisiae written by J Richardson Dickinson and published by Taylor & Francis US. This book was released on 1998-12-09 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text emphasises the importance of staying informed about Saccharomyces cerevisiae as it provides the intellectual basis for much of the molecular and cellular biology of eukaryotes. It offers yeast users a concise account of the metabolism and physiology of this organism. Chapters include: life cycle and morphogenesis; carbon metabolism, nitrogen metabolism; lipids and membranes; protein trafficking; and phosphorlation and dephosphorylation of protein and stress response. This book is for second and final year undergraduates in microbiology, biotechnology and applied biology, postgraduate and doctural researchers working on yeast, and researchers and managers in industries which use and exploit Saccharomyces cerevisiae.

Book Metabolism and Molecular Physiology of Saccharomyces Cerevisiae

Download or read book Metabolism and Molecular Physiology of Saccharomyces Cerevisiae written by J. Richard Dickinson and published by CRC Press. This book was released on 2004-04-27 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the best-selling first edition, much has been discovered about Saccharomyces cerevisiae, the single-celled fungus commonly known as baker's yeast or brewer's yeast that is the basis for much of our understanding of the molecular and cellular biology of eukaryotes. This wealth of new research data demands our attention and r

Book Stress Induced Mutagenesis

    Book Details:
  • Author : David Mittelman
  • Publisher : Springer Science & Business Media
  • Release : 2013-03-12
  • ISBN : 1461462800
  • Pages : 284 pages

Download or read book Stress Induced Mutagenesis written by David Mittelman and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of stress-induced mutagenesis has changed ideas about mutation and evolution, and revealed mutagenic programs that differ from standard spontaneous mutagenesis in rapidly proliferating cells. The stress-induced mutations occur during growth-limiting stress, and can include adaptive mutations that allow growth in the otherwise growth-limiting environment. The stress responses increase mutagenesis specifically when cells are maladapted to their environments, i.e. are stressed, potentially accelerating evolution then. The mutation mechanism also includes temporary suspension of post-synthesis mismatch repair, resembling mutagenesis characteristic of some cancers. Stress-induced mutation mechanisms may provide important models for genome instability underlying some cancers and genetic diseases, resistance to chemotherapeutic and antibiotic drugs, pathogenicity of microbes, and many other important evolutionary processes. This book covers pathways of stress-induced mutagenesis in all systems. The principle focus is mammalian systems, but much of what is known of these pathways comes from non-mammalian systems.

Book Inflammation and Cancer

    Book Details:
  • Author : Bharat B. Aggarwal
  • Publisher : Springer
  • Release : 2014-05-12
  • ISBN : 3034808372
  • Pages : 489 pages

Download or read book Inflammation and Cancer written by Bharat B. Aggarwal and published by Springer. This book was released on 2014-05-12 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume examines in detail the role of chronic inflammatory processes in the development of several types of cancer. Leading experts describe the latest results of molecular and cellular research on infection, cancer-related inflammation and tumorigenesis. Further, the clinical significance of these findings in preventing cancer progression and approaches to treating the diseases are discussed. Individual chapters cover cancer of the lung, colon, breast, brain, head and neck, pancreas, prostate, bladder, kidney, liver, cervix and skin as well as gastric cancer, sarcoma, lymphoma, leukemia and multiple myeloma.