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Author: Max E Gottesman
Publisher: Academic Press
ISBN: 148327408X
Category : Science
Languages : en
Pages : 228
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Book Description
Mechanisms of Eukaryotic DNA Recombination is a collection of papers that discusses advances in eukaryotic genetic recombination. Papers address issues in eukaryotic genetic recombination, particularly DNA integration in mammalian genomes, genetic recombination in Drosophila or Caenorhabditis; the manipulation of the mouse genome; genome organization; and genetic recombination in protozoa. One paper discusses chromatid interactions during intrachromosomal recombination in mammalian cells, namely, intrachromatid and sister chromatid. Another paper analyzes the implication for chromosomal recombination and gene targeting; results on extrachromosomal recombination show that circles are inefficient substrates for recombination even if only one of two substrates in an intermolecular reaction is circular. One author discusses the genetics and molecular biology of recombination, citing the work of Watson and Crick, stating that crossing-over occurs between genes (not within them). He also explains that the formation and resolution of recombination intermediaries depend on enzyme or other proteins. This book will prove invaluable to cellular biologists, microbiologists, and researchers engaged in genetics and general biology.
Author: Max E Gottesman
Publisher: Academic Press
ISBN: 148327408X
Category : Science
Languages : en
Pages : 228
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Book Description
Mechanisms of Eukaryotic DNA Recombination is a collection of papers that discusses advances in eukaryotic genetic recombination. Papers address issues in eukaryotic genetic recombination, particularly DNA integration in mammalian genomes, genetic recombination in Drosophila or Caenorhabditis; the manipulation of the mouse genome; genome organization; and genetic recombination in protozoa. One paper discusses chromatid interactions during intrachromosomal recombination in mammalian cells, namely, intrachromatid and sister chromatid. Another paper analyzes the implication for chromosomal recombination and gene targeting; results on extrachromosomal recombination show that circles are inefficient substrates for recombination even if only one of two substrates in an intermolecular reaction is circular. One author discusses the genetics and molecular biology of recombination, citing the work of Watson and Crick, stating that crossing-over occurs between genes (not within them). He also explains that the formation and resolution of recombination intermediaries depend on enzyme or other proteins. This book will prove invaluable to cellular biologists, microbiologists, and researchers engaged in genetics and general biology.
Author: Bruce Alberts
Publisher:
ISBN: 9780815332183
Category : Cytology
Languages : en
Pages : 0
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Book Description
Author: Rhoda Grell
Publisher: Springer Science & Business Media
ISBN: 1468421336
Category : Medical
Languages : en
Pages : 443
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Book Description
This book contains the papers presented at the Twenty-Seventh Annual Biology Division Research Conference which was held April 1-4, 1974 in Gatlinburg, Tennessee. The topic of the symposium was Mechanisms in Recombination and it follows by exactly twenty years the previous Gatlinburg Symposium on Genetic Recombination. During this interval, and the preceding years as well, the process of recombination has remained a central and tantalizing problem for geneticists. The subject assumes added significance with the recent appeal by a committee of leading scientists for a moratorium on the construction of certain types of recombinant molecules. That autonomously replicating molecules linking portions of pro karyotic and eukaryotic DNA can now be produced in vitro attests to the technical advances that have taken place in this field. Nevertheless, the details underlying the process in vivo continue to be elusive. This symposium brought together individuals studying recombi nation in organisms as widely separated as bacteriophage and mammals and using disciplinary approaches of comparable diversity. Conse quently the present volume summarizes much of current strategies and concepts concerning the subject. The meeting was sponsored by the Biology Division of the Oak Ridge National Laboratory (operated by the Union Carbide Corporation for the U. S. Atomic Energy Commission) with the support and encour agement of its director, H. I. Adler. The organizing committee was chaired by J. K. Setlow and included R. F. Grell, R. D. Hotchkiss and E. Volkin. Special thanks are due to the speakers, to I. R.
Author: Fumio Hanaoka
Publisher: Springer
ISBN: 443155873X
Category : Science
Languages : en
Pages : 548
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Book Description
This book is a comprehensive review of the detailed molecular mechanisms of and functional crosstalk among the replication, recombination, and repair of DNA (collectively called the "3Rs") and the related processes, with special consciousness of their biological and clinical consequences. The 3Rs are fundamental molecular mechanisms for organisms to maintain and sometimes intentionally alter genetic information. DNA replication, recombination, and repair, individually, have been important subjects of molecular biology since its emergence, but we have recently become aware that the 3Rs are actually much more intimately related to one another than we used to realize. Furthermore, the 3R research fields have been growing even more interdisciplinary, with better understanding of molecular mechanisms underlying other important processes, such as chromosome structures and functions, cell cycle and checkpoints, transcriptional and epigenetic regulation, and so on. This book comprises 7 parts and 21 chapters: Part 1 (Chapters 1–3), DNA Replication; Part 2 (Chapters 4–6), DNA Recombination; Part 3 (Chapters 7–9), DNA Repair; Part 4 (Chapters 10–13), Genome Instability and Mutagenesis; Part 5 (Chapters 14–15), Chromosome Dynamics and Functions; Part 6 (Chapters 16–18), Cell Cycle and Checkpoints; Part 7 (Chapters 19–21), Interplay with Transcription and Epigenetic Regulation. This volume should attract the great interest of graduate students, postdoctoral fellows, and senior scientists in broad research fields of basic molecular biology, not only the core 3Rs, but also the various related fields (chromosome, cell cycle, transcription, epigenetics, and similar areas). Additionally, researchers in neurological sciences, developmental biology, immunology, evolutionary biology, and many other fields will find this book valuable.
Author:
Publisher: Academic Press
ISBN: 0128144300
Category : Science
Languages : en
Pages : 610
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Book Description
Mechanisms of DNA Recombination and Genome Rearrangements: Methods to Study Homologous Recombination, Volume 600, the latest release in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. Homologous genetic recombination remains the most enigmatic process in DNA metabolism. The molecular machines of recombination preserve the integrity of the genetic material in all organisms and generate genetic diversity in evolution. The same molecular machines that support genetic integrity by orchestrating accurate repair of the most deleterious DNA lesions, however, also promote survival of cancerous cells and emergence of radiation and chemotherapy resistance. This two-volume set offers a comprehensive set of cutting edge methods to study various aspects of homologous recombination and cellular processes that utilize the enzymatic machinery of recombination The chapters are written by the leading researches and cover a broad range of topics from the basic molecular mechanisms of recombinational proteins and enzymes to emerging cellular techniques and drug discovery efforts. Contributions by the leading experts in the field of DNA repair, recombination, replication and genome stability Documents cutting edge methods
Author: Andrés Aguilera
Publisher: Springer Science & Business Media
ISBN: 3540710213
Category : Science
Languages : en
Pages : 536
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Book Description
This work offers a fascinating insight into a crucial genetic process. Recombination is, quite simply, one of the most important topics in contemporary biology. This book is a totally comprehensive treatment of the subject, summarizing all existing views on the topic and at the same time putting them into context. It provides in-depth and up-to-date analysis of the chapter topics, and has been written by international experts in the field.
Author: A. De Recondo
Publisher: Springer Science & Business Media
ISBN: 1468443976
Category : Medical
Languages : en
Pages : 361
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Book Description
DNA replication in eukaryotes is an important field, particular ly because of its direct impact on the study of cancer. The under standing of molecular mechanisms of replication and their regulation should allow a better comprehension of the alterations that lead to the proliferation of tumor cells and to error-prone repair in cells exposed to radiation or chemical carcinogens. During the last several years, many enzymes and proteins which participate in replication of DNA in eukaryotic cells have been identified, isolated and characterized. New concepts in chromatin structure have refocused attention on the study of replication of DNA complexed with his tones and non-histone chromosomal proteins. However, progress has been noticeably slower than for prokaryotes, essentially because of the difficulty in genetic analysis of eukaryo tic DNA replication. In June 1980, a workshop was organized in Cargese, Corsica (France) to facilitate exchanges of information between workers spe cializing in prokaryotes and those specializing in eukaryotes, and to allow discussion of new experimental approaches. With this in mind, special interest has been taken in the origin and termination of chromosome cycles and how they are controlled.
Author: Bruce Alberts
Publisher: Elsevier
ISBN: 032314179X
Category : Science
Languages : en
Pages : 1034
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Book Description
Mechanistic Studies of DNA Replication and Genetic Recombination emerged from a symposium on DNA replication and genetic recombination held from March 16-21, 1980 in Keystone, Colorado. The event featured 30 plenary session talks, 13 workshop discussion groups, and the 210 poster sessions. The studies described in this book are paving the way for the elucidation of other basic genetic mechanisms, including ""new"" areas in molecular genetics such as those of eukaryotic gene expression and the transposition of mobile genetic elements. This book is divided into 10 parts: summaries of workshop discussion groups (Part I); studies on eukaryotic model systems for DNA replication (Part II); studies on bacterial replication origins (Part III); studies on replication origins of bacterial phages and plasmids (Part IV); studies on eukaryotic replication origins (Part V); studies on prokaryotic replication enzymology (Part VI); studies on eukaryotic replication enzymology (Part VII); studies on the fidelity of DNA replication (Part VIII); studies on DNA topoisomerases (Part IX); and studies of genetic recombination mechanisms (Part X).
Author: Xin Chenglin Li
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The mechanism that replicates, maintains, and sometimes alters the DNA is most fundamental and important for life. Three processes (DNA Replication, Repair, and Recombination) that are involved in this mechanism are closely related and well conserved in evolution. In my Ph.D. studies, I have used the cross model-organism approach to investigate the molecular mechanisms of DNA replication stress induced cancer as well as meiosis disruption caused infertility. Mcm4Chaos3, which encodes a mutant subunit of the hexameric MCM helicase, was previously reported to cause genetic instability (GIN) in mice and predispose homozygous female mice to mammary adenocarcinomas. My results show that homozygous diploid yeast carrying the equivalent mutation are defective in replicating long terminal repeat (LTR) elements. The replication stress at these interspersed repeat sequences coupled with error prone repair is the source of GIN, which is the driving force for the acquisition of an accelerated proliferation (AP) phenotype with aneuploidy as byproducts. I showed that mutations unrelated to aneuploidy are the cause of the AP phenotype. Moreover, the fragility of LTR regions is dependent on ploidy. The LTRs are not vulnerable to replication stress in haploid yeast and mcm4Chaos3 haploids use other repair pathways without generating GIN. Therefore, the dichotomy of consequences of DNA replication stress and repair pathway choice stems from cell-type specific regulation of fragile sites. In mammalian meiosis, homologous chromosome synapsis is coupled with recombination. As in most eukaryotes, mammalian meiocytes have checkpoints that monitor the fidelity of these processes. I reported that the mouse ortholog (Trip13) of pachytene checkpoint 2 (PCH2), an essential component of the synapsis checkpoint in S. cerevisiae and C. elegans, is required after strand invasion for completing a subset of recombination events, but possibly not those destined to be crossovers (Li and Schimenti 2007). TRIP13-deficient mice exhibit spermatocyte death in pachynema and loss of oocytes around birth. The chromosomes of mutant spermatocytes synapse fully, yet retain several markers of recombination intermediates. This is the first model to separate recombination defects from asynapsis in mammalian meiosis. Surprisingly, we found no evidence for checkpoint function, suggesting different pachytene checkpoint mechanisms may be involved in different species (Li et al. 2008).
Author: Hisao Masai
Publisher: Springer
ISBN: 9811069557
Category : Science
Languages : en
Pages : 581
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Book Description
This book reviews the latest trends and future directions of DNA replication research. The contents reflect upon the principles that have been established through the genetic and enzymatic studies of bacterial, viral, and cellular replication during the past decades. The book begins with a historical overview of the studies on eukaryotic DNA replication by Professor Thomas Kelly, a pioneer of the field. The following chapters include genome-wide studies of replication origins and initiation factor binding, as well as the timing of DNA replications, mechanisms of initiation, DNA chain elongation and termination of DNA replication, the structural basis of functions of protein complexes responsible for execution of DNA replication, cell cycle-dependent regulation of DNA replication, the nature of replication stress and cells’ strategy to deal with the stress, and finally how all these phenomena are interconnected to genome instability and development of various diseases. By reviewing the existing concepts ranging from the old principles to the newest ideas, the book gives readers an opportunity to learn how the classical replication principles are now being modified and new concepts are being generated to explain how genome DNA replication is achieved with such high adaptability and plasticity. With the development of new methods including cryoelectron microscopy analyses of huge protein complexes, single molecular analyses of initiation and elongation of DNA replication, and total reconstitution of eukaryotic DNA replication with purified factors, the field is enjoying one of its most exciting moments, and this highly timely book conveys that excitement to all interested readers.
