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Author: A. S. N. Reddy Publisher: Springer Science & Business Media ISBN: 3540767762 Category : Science Languages : en Pages : 323
Book Description
During the last few years, tremendous progress has been made in understanding various aspects of pre-mRNA processing. This book, with contributions from leading scientists in this area, summarizes recent advances in nuclear pre-mRNA processing in plants. It provides researchers in the field, as well as those in related areas, with an up-to-date and comprehensive, yet concise, overview of the current status and future potential of this research in understanding plant biology.
Author: A. S. N. Reddy Publisher: Springer Science & Business Media ISBN: 3540767762 Category : Science Languages : en Pages : 323
Book Description
During the last few years, tremendous progress has been made in understanding various aspects of pre-mRNA processing. This book, with contributions from leading scientists in this area, summarizes recent advances in nuclear pre-mRNA processing in plants. It provides researchers in the field, as well as those in related areas, with an up-to-date and comprehensive, yet concise, overview of the current status and future potential of this research in understanding plant biology.
Author: Philippe Jeanteur Publisher: Springer Science & Business Media ISBN: 9783540438335 Category : Science Languages : en Pages : 272
Book Description
The discovery in 1977 that genes are split into exons and introns has done away with the one gene - one protein dogma. Indeed, the removal of introns from the primary RNA transcript is not necessarily straightforward since there may be optional pathways leading to different messenger RNAs and consequently to different proteins. Examples of such an alternative splicing mechanism cover all fields of biology. Moreover, there are plenty of occurrences where deviant splicing can have pathological effects. Despite the high number of specific cases of alternative splicing, it was not until recently that the generality and extent of this phenomenon was fully appreciated. A superficial reading of the preliminary sequence of the human genome published in 2001 led to the surprising, and even deceiving to many scientists, low number of genes (around 32,000) which contrasted with the much higher figure around 150,000 which was previously envisioned. Attempts to make a global assessment of the use of alternative splicing are recent and rely essentially on the comparison of genomic mRNA and EST sequences as reviewed by Thanaraj and Stamm in the first chapter of this volume. Most recent estimates suggest that 40-60% of human genes might be alternatively spliced, as opposed to about 22% for C. elegans.
Author: Angus I. Lamond Publisher: Springer Science & Business Media ISBN: 3662223252 Category : Science Languages : en Pages : 230
Book Description
he past fifteen years have seen tremendous growth in our understanding of T the many post-transcriptional processing steps involved in producing func tional eukaryotic mRNA from primary gene transcripts (pre-mRNA). New processing reactions, such as splicing and RNA editing, have been discovered and detailed biochemical and genetic studies continue to yield important new insights into the reaction mechanisms and molecular interactions involved. It is now apparent that regulation of RNA processing plays a significant role in the control of gene expression and development. An increased understanding of RNA processing mechanisms has also proved to be of considerable clinical importance in the pathology of inherited disease and viral infection. This volume seeks to review the rapid progress being made in the study of how mRNA precursors are processed into mRNA and to convey the broad scope of the RNA field and its relevance to other areas of cell biology and medicine. Since one of the major themes of RNA processing is the recognition of specific RNA sequences and structures by protein factors, we begin with reviews of RNA-protein interactions. In chapter 1 David Lilley presents an overview of RNA structure and illustrates how the structural features of RNA molecules are exploited for specific recognition by protein, while in chapter 2 Maurice Swanson discusses the structure and function of the large family of hnRNP proteins that bind to pre-mRNA. The next four chapters focus on pre-mRNA splicing.
Author: Ezequiel Petrillo Publisher: Frontiers Media SA ISBN: 2889639746 Category : Nature Languages : en Pages : 175
Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Author: Daniel R. Schoenberg Publisher: Springer Science & Business Media ISBN: 1592597505 Category : Science Languages : en Pages : 277
Book Description
Cells possess a wealth of posttranscriptional control mechanisms that impact on every conceivable aspect of the life of an mRNA. These processes are intimately intertwined in an almost baroque manner, where promoter context influences the recruitment of splicing factors, where the majority of pre-mRNAs undergo alternative splicing, and where proteins deposited during nuclear processing impact distal cytoplasmic processing, translation, and decay. If there is a unifying theme to mRNA Processing and Metabolism: Methods and Protocols, it is that mRNA processing and metabolism are integrated processes. Many of the techniques used to study mRNA have been described in a previous volume of this series (RNA–Protein Interaction Protocols, Susan Haynes, ed.) and specialized methods journals. In selecting topics for mRNA Processing and Metabolism: Methods and Protocols, I sought input on new and novel techniques and approaches that build on this foundation using technological advances in microscopy, whole genome sequencing, microarrays, mass spectrometry, fluorescent detection methodologies, and RNA interference. I have tried not to bias this book toward any single model organism, and approaches described in the various chapters use yeast, Drosophila, Xenopus, mice, plants, and cultured mammalian cells.
Author: Ruijiao Xin Publisher: ISBN: Category : Languages : en Pages : 324
Book Description
Light signal regulates plant growth and development by controlling a plethora of gene expression changes. Post-transcriptional regulation, especially pre-mRNA processing, is a key step in controlling gene expression; however, the molecular mechanisms linking pre-mRNA processing and light signaling are not well understood. Here we have identified a small functional group of splicing factors, including SFPS (Splicing Factor for Phytochrome Signaling), RRC1 (Reduced Red-light Responses in cry1cry2 Background 1), and SWAP (Suppressor-of-White-Apricot Domain Containing Protein). Genetic studies have shown that sfps and rrc1 single mutants displayed similar long hypocotyl and early flowering phenotype. The double mutant phenotype is similar to sfps single, further confirming that these two proteins function similarly while regulating diverse light responses. Mechanistic studies revealed these two proteins directly interact with each other both in vitro and in vivo. SFPS, reported as the U2 spliceosome-associated splicing factors in animal systems, has also been found to co-localize with U2 spliceosome components (such as U2AF65B, U2AF35A, and U2A’) and RRC1 in the nucleoplasm and nuclear speckles in Arabidopsis. To identify the targets bound by these RNA binding proteins, we sequenced the dark grown sfps and rrc1 mutants irradiated with or without 3hrs of red light. The results indicate SFPS and RRC1 regulate thousands of genes expression through affecting the pre-mRNA splicing in the transcriptome. The splicing defective genes are significantly enriched in “red light stimulus”, “circadian clock” and “photoperiodism”, which further explained the photomorphogenesis and flowering time phenotypes of the sfps and rrc1 mutants. At the same time, two subsets of the co-regulated genes have been identified in dark and light conditions, respectively, revealing the collaborative roles of these two proteins in regulating pre-mRNA splicing. Finally, red light photoreceptor phyB has been discovered to directly interact with SFPS in a red light dependent manner. pifq mutant can completely restore the light hyposensitive phenotype of sfps. All the evidence linked the upstream light signaling pathway to the pre-mRNA splicing mechanisms in plants. However, the molecular mechanisms by which phytochromes modulate the activities of the splicing machineries are still unknown. Taken together, these data suggest that SFPS and RRC1 form a splicing complex functioning downstream of phytochromes, and fine-tune various light responses through regulating pre-mRNA splicing
Author: Witold Filipowicz Publisher: Springer Science & Business Media ISBN: 9400903537 Category : Science Languages : en Pages : 419
Book Description
A recent volume of this series (Signals and Signal Transduction Pathways in Plants (K. Palme, ed.) Plant Molecular Biology 26, 1237-1679) described the relay races by which signals are transported in plants from the sites of stimuli to the gene expression machinery of the cell. Part of this machinery, the transcription apparatus, has been well studied in the last two decades, and many important mechanisms controlling gene expression at the transcriptional level have been elucidated. However, control of gene expression is by no means complete once the RNA has been produced. Important regulatory devices determine the maturation and usage of mRNA and the fate of its translation product. Post-transcriptional regulation is especially important for generating a fast response to environmental and intracellular signals. This book summarizes recent progress in the area of post-transcriptional regulation of gene expression in plants. 18 chapters of the book address problems of RNA processing and stability, regulation of translation, protein folding and degradation, as well as intracellular and cell-to-cell transport of proteins and nucleic acids. Several chapters are devoted to the processes taking place in plant organelles.
Author: Stefan Stamm Publisher: John Wiley & Sons ISBN: 9783527326068 Category : Science Languages : en Pages : 660
Book Description
This book was written for graduate and medical students, as well as clinicians and postdoctoral researchers. It describes the theory of alternative pre-mRNA splicing in twelve introductory chapters and then introduces protocols and their theoretical background relevant for experimental research. These 43 practical chapters cover: Basic methods, Detection of splicing events, Analysis of alternative pre-mRNA splicing in vitro and in vivo, Manipulation of splicing events, and Bioinformatic analysis of alternative splicing. A theoretical introduction and practical guide for molecular biologists, geneticists,clinicians and every researcher interested in alternative splicing. Website: www.wiley-vch.de/home/splicing