Rna Helicases

This volume of Methods in Enzymology aims to provide a reference for the diverse, powerful tools used to analyze RNA helicases. The contributions in this volume cover the broad scope of methods in the research on these enzymes. Several chapters describe quantitative biophysical and biochemical approaches to study molecular mechanisms and conformational changes of RNA helicases. Further chapters cover structural analysis, examination of co-factor effects on several representative examples, and the analysis of cellular functions of select enzymes. Two chapters outline approaches to the analysis of inhibitors that target RNA helicases. This volume of Methods in Enzymology aims to provide a reference for the diverse, powerful tools used to analyze RNA helicases The contributions in this volume cover the broad scope of methods in the research on these enzymes

RNA Helicases—Advances in Research and Application: 2012 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about RNA Helicases in a compact format. The editors have built RNA Helicases—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about RNA Helicases in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of RNA Helicases—Advances in Research and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Helicases are ubiquitous enzymes found throughout evolution. Research in the helicase field has been going on for a long time now but in recent past with the completion of so many genomes, these enzymes have been discovered in a number of organisms. But the available literature is scattered. The huge number of identified DNA and RNA helicases, along with the structural and functional differences among them, make difficult for the interested scholar to grasp a comprehensive view of the field. Helicases from all Domains of Life is the first book to compile information about helicases from many different organisms in one place. Knowledge of the functions and features of helicases across the different kingdoms of life are a valuable source of novel ideas and information The book begins with a chapter on the evolutionary history of helicases followed by three "overview" chapters: one for bacteria/archaea (which are not mentioned), one for plants/algae and one for human helicases The overview chapters are followed by specific chapters on selected helicases of great importance from a biological/applicative point of view

RNA helicases have many important roles in cell metabolism and are involved in numerous pathways, e.g. translation, pre-mRNA splicing and biogenesis. Interestingly, an increasing number of RNA helicases have been shown to be required for more than one cellular pathway. Therefore, protein cofactors have been suggested to recruit multifunctional RNA helicases to their substrates and regulate their activity. The best characterised family of helicase cofactors are G-patch proteins, which all contain a glycine-riche domain. This work focuses on the characterisation of the yeast RNA helicase Prp43 and its G-patch protein cofactors. Additionally, a new G-patch protein cofactor of Prp43 was identified and characterised. Together, the data suggest that protein cofactors can regulate the distribution and activity of RNA helicases in different pathways.

Helicases from All Domains of Life is the first book to compile information about helicases from many different organisms in a single volume. Research in the helicase field has been going on for a long time now, but the completion of so many genomes of these ubiquitous enzymes has made it difficult to keep up with new discoveries. As the huge number of identified DNA and RNA helicases, along with the structural and functional differences among them, make it difficult for the interested scholar to grasp a comprehensive view of the field, this book helps fill in the gaps. Presents updates on the functions and features of helicases across the different kingdoms Begins with a chapter on the evolutionary history of helicases Contains specific chapters on selected helicases of great importance from a biological/applicative point-of-view

Biochemical studies on plant virus RNA replication have advanced considerably since 2000, primarily because of new genetic, molecular, biochemical, and enzymatic studies. This book generates understanding of multiplication of plus-sense RNA plant viruses, especially at molecular level. Certain virus-encoded essential proteins, nucleotide sequence motifs, and RNA secondary structures are central to virus RNA replication, which has a number of stages. Each is a complex phenomenon requiring specific factors and conditions.

Helicases are the proteins that bind to double- or single-stranded DNA and/or RNA chains to unwind higher order structures, usually consuming energy from the hydrolysis of ATP molecules. The biological roles of helicases are associated with a variety of DNA and/or RNA metabolisms, including DNA-replication, -repair, -recombination, RNA processing, and transcription. Dysfunctions of helicases cause various diseases, such as xeroderma pigmentosum (XP), premature aging syndrome, cancer and immunodeficiency, in humans. Moreover, recent genetic analyses revealed that mutations in helicase-encoding genes are frequently found in patients of specific diseases. Some helicases regulate cellular senescence by controlling integrity of genomes, and others play a role in neuromuscular functions presumably by modulating processing of mRNAs. However, the molecular mechanisms of how helicases are regulated in order to maintain our health are not yet fully understood. In this research topic, we will focus on the expression and functions of helicases and their encoding genes, reviewing recent research progresses that provide new insights into development of clinical and pharmaceutical treatments targeting helicases.

RNA Nucleotidyltransferases—Advances in Research and Application: 2012 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about RNA Nucleotidyltransferases in a concise format. The editors have built RNA Nucleotidyltransferases—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about RNA Nucleotidyltransferases in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of RNA Nucleotidyltransferases—Advances in Research and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.