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This book delves into the fascinating realm of eukaryotic gene regulation. The specific expression of genes shapes the phenotype of cells and tissues. The regulation of gene expression, including up- and downregulation, is a fundamental aspect of nearly all physiological processes, both in health and disease. These dynamic processes respond to various daily challenges, such as dietary changes and infections. Therefore, it is crucial for not only biologists and biochemists but also all students in biomedical disciplines to understand gene regulation concepts. This foundational knowledge will benefit them in their specialized fields. A comprehensive understanding of transcription factors and the mechanisms that alter their activity is a fundamental goal of modern life science research. Epigenetics refers to the packaging and accessibility of the genome in each of the trillions of cells in our bodies. The prefix “epi” (meaning “upon,” “above,” or “beyond”) indicates that epigenetic processes do not alter the DNA sequence of our genome, adding a layer of information beyond that encoded in our genome. Genomic DNA is wrapped around complexes of histone proteins, helping it fit into a cell nucleus with a diameter of less than 10 μm. This protein-DNA complex is known as chromatin. The content of this book is linked to the “Molecular Medicine and Genetics” course, which the author has lectured on in various forms since 2002 at the University of Eastern Finland in Kuopio. This book is an updated version of the textbooks “Mechanisms of Gene Regulation” and “Human Epigenomics.” It is divided into 16 chapters. Following two introductory chapters, four chapters explore gene regulation from the perspective of transcription factors, while another four chapters focus on chromatin and non-coding RNA. Three chapters then discuss the impact of epigenetics from a health perspective, and the final three chapters address epigenetics from the perspective of diseases. A glossary in the appendix explains the major specialist terms.

Tauchen Sie ein in die Welt der Epigenetik, die Ihnen erklärt, wie Sie Ihre Gesundheit fördern und das Beste aus sich selbst herausholen können. Zunächst führt Sie das Werk in die molekularen Grundlagen ein, wie jede einzelne Zelle funktioniert und Information über ihre Umgebung verarbeitet. Letzteres hat sehr viel mit Epigenetik zu tun, die ein zentrales Thema in diesem Buch ist. Die Epigenetik, die für die Identität der mehr als 400 verschiedenen Zelltypen unseres Körpers entscheidend ist, hat auch einen dynamischen Aspekt. Sie lernen, wie intrazellulärer Signalübertragungswege über extrazelluläre Signale aktiviert werden und damit Transkriptionsfaktoren und Chromatin-modifizierenden Enzymen beeinflussen. Viele dieser Signale stammen direkt oder indirekt von unserer Ernährung. Letztere ist das wichtigste externe Signal, dem wir täglich ausgesetzt sind. Das führt zum zweiten zentralen Thema dieses Buches, der Nutrigenomik. Die Nahrung, die wir täglich zu uns nehmen, ist weit mehr als eine Ansammlung von Kohlenhydraten, Proteinen, Lipiden, Vitaminen und Mineralien, die Energie und Bausteine für unseren Körper liefert. Das faszinierende Fachgebiet der Nutrigenomik beschreibt die Wechselwirkung zwischen Nahrungsmolekülen, ihren Metaboliten und unserem (Epi)genom. Viele Nahrungsbestandteile, wie beispielsweise ungesättigte Fettsäuren, aktivieren direkt Transkriptionsfaktoren oder verursachen Veränderungen in den Konzentrationen von Metaboliten. Diese beeinflussen wiederum die Aktivität von Chromatin-modifizierenden Enzymen. Auf diese Weise „sprechen“ Moleküle unseres Frühstücks, Mittagessen oder Abendessen mit unserem Genom bzw. Epigenom. Tauchen Sie ein in die faszinierende Welt der Selbstheilung und Verantwortung für Ihre Gesundheit!

This handbook is the first to comprehensively cover nucleic acids from fundamentals to recent advances and applications. It is divided into 10 sections where authors present not only basic knowledge but also recent research. Each section consists of extensive review chapters covering the chemistry, biology, and biophysics of nucleic acids as well as their applications in molecular medicine, biotechnology and nanotechnology. All sections within this book are: Physical Chemistry of Nucleic Acids (Section Editor: Prof. Roland Winter), Structural Chemistry of Nucleic Acids (Section Editor: Prof. Janez Plavec), Organic Chemistry of Nucleic Acids (Section Editor: Prof. Piet Herdewijin), Ligand Chemistry of Nucleic Acids (Section Editor: Prof. Marie-Paule Teulade-Fichou), Nucleic Acids and Gene Expression (Section Editor: Prof. Cynthia Burrows), Analytical Methods and Applications of Nucleic Acids (Section Editor: Prof. Chaoyong Yang), Nanotechnology and Nanomaterial Biology of Nucleic Acids (Section Editor: Prof. Zhen Xi), Nucleic Acids Therapeutics (Section Editor: Prof. Katherine Seley-Radtke), Biotechnology and Synthetic Biology of Nucleic Acids (Section Editor: Prof. Eriks Rozners), Functional Nucleic Acids (Section Editor: Prof. Keith R. Fox).The handbook is edited by outstanding leaders with contributions written by international renowned experts. It is a valuable resource not only for researchers but also graduate students working in areas related to nucleic acids who would like to learn more about their important role and potential applications.

This book provides a state-of-the-art overview of key areas of subcellular aging research in human cells. The reader is introduced to the historical development and progress in biomedical aging research and learns, for example, about the role of microRNAs, circRNAs, mitochondria and extracellular vesicles in cellular senescence. The reader will also learn more about how gap junctions, the nuclear pore complex and the proteasome are affecting the ageing processes. In addition, novel therapeutic opportunities through modulation of cellular senescence are discussed. The book follows on from Parts I and II of Biochemistry and Cell Biology of Ageing (Volumes 90 and 91 of the Subcellular Biochemistry book series) by covering interesting and significant biomedical ageing topics not included in the earlier volumes. Comprehensive and cutting-edge, this book is a valuable resource for experienced researchers and early career scientist alike, who are interested in learning more about the fascinating and challenging question of why and how our cells age.

Methods in Enzymology serial highlights new advances in the field with this new volume presenting interesting chapters. Each chapter is written by an international board of authors. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in Methods in Enzymology serials - Updated release includes the latest information on Helicase Enzymes

This book addresses and dissects the roles and crosstalk mechanisms for the 48 human nuclear receptors (NR) in human health and disease. After a State-of-the-Art introduction by an undisputed and celebrated field leader to provide an overview of the field and its significance, chapters are organized into six sections. The first three sections discuss NR roles in Reproduction & Development, Metabolism and Central Systems. These present to the reader our current understanding of NR signaling in the development and functioning of the reproductive system; the roles in the regulation of energy metabolism; and how NR signaling is more widely integrated into systemic functions from calcium flux to circadian rhythm. The subsequent three sections dissect how aberrant NR functions drive Cancer; how new insights into Genomic Interaction are helping to reveal how NR disruption drives disease; and finally, how Translational Efforts are exploiting this understanding from developing novel NR ligands to establishing how underlying genetic variation impacts NR function. Within these sections the chapters also illustrate emerging understanding of how the epigenome and non-coding genome combine to regulate NR function and impact dysfunction. Increasingly these insights cross-fertilize over cell and disease boundaries and it is unsurprising that NR are being explored in novel and new arenas such as the context of neurological disorders and depression. Thus, there is wide scope for re-purposing of licensed drugs and development of new NR-targeting therapies for a host of conditions and diseases. This unique book brings together many of the leading figures in NR research from across the globe, to discuss emerging roles and their implications for human health and disease. It summarizes the state of the art and shows signposts for future research to further shape this influential field.

Dancing Protein Clouds: Intrinsically Disordered Proteins in the Norm and Pathology, Part C, Volume 183 represents a set of selected studies on a variety of research topics related to intrinsically disordered proteins. Topics in this volume include discussions on the evolution of disorder, consideration of the peculiarities of phase separation of the prion protein, a general discussion of the relationships between intrinsic disorder and protein functions, coverage of the structural and functional characterization of several important intrinsically disordered proteins, such as transcription factors, outer membrane porins, trans-membrane and membrane associated proteins with ID regions, discussion of molecular simulations of IDPs, and much more. - Provides recent studies on the intrinsically disordered proteins and their functions, along with the involvement of intrinsically disordered proteins in the pathogenesis of various diseases - Contains numerous illustrative materials (color figures, diagrams and tables) to help readers delve into the information provided - Includes contributions from recognized experts in the field

This book summarizes current data on the architecture, structure-function relationships, reaction mechanisms and active site coupling in multienzyme complexes of 2-oxo acid dehydrogenases. Special focus concerns the mechanisms of function and regulation of a multienzyme structure, additional to those inherent in its component enzymes. The overall physiological process of 2-oxo acid oxidative decarboxylation and the substrate specificity determinants are considered along with side reactions of regulatory significance, such as non-oxidative reactions, formation of reactive oxygen species (ROS) and complex-bound thiyl radicals. The significance of the chemical interplay between the complex-bound dihydrolipoate intermediate, thioredoxin or thioredoxin-like proteins, and peroxiredoxins for sensing metabolic state and adjusting the catalysis accordingly, is considered. Other mechanisms involved in the short- and long-term regulation of 2-oxo acid dehydrogenase complexes are summarized in view of their relevance to physiological functions. Metabolic regulation by natural effectors of 2-oxo acid dehydrogenase complexes and their synthetic analogues is considered. The medical implications of enzymological knowledge on the complexes are also presented.