Structural and Catalytic Roles of Metal Ions in RNA

Structural and Catalytic Roles of Metal Ions in RNA PDF Author: Astrid Sigel
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110436647
Category : Science
Languages : en
Pages : 424

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Book Description
The discovery of ribozymes nearly 30 years ago triggered a huge interest in the chemistry and biology of RNAs. Much of the recently made progress focusing on metal ions is addressed in MILS 9. This book, written by 28 internationally recognized experts from 8 nations, provides a most up-to-date view and is thus of special relevance for colleagues teaching courses in biological inorganic chemistry and for researchers dealing, e.g., with nucleic acids, gene expression, and enzymology, but also for those in analytical and bioinorganic chemistry or biophysics. Structural and Catalytic Roles of Metal Ions in RNA describes in an authoritative and timely manner in 12 stimulating chapters, supported by nearly 1600 references, 13 tables, and 75 illustrations, mostly in color, metal ion-binding motifs, methods to detect and characterize metal ion-binding sites, and the role of metal ions in folding and catalysis. It deals with diffuse metal ion binding, RNA quadruplexes, the regulation of riboswitches, metal ions and ribozymes, including artificial ribozymes. The spliceosome, the ribosome, ribozymes involving redox cofactors as well as the binding of kinetically inert metal ions to RNA are also covered.

Structural and Catalytic Roles of Metal Ions in RNA

Structural and Catalytic Roles of Metal Ions in RNA PDF Author: Astrid Sigel
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110436647
Category : Science
Languages : en
Pages : 424

Get Book Here

Book Description
The discovery of ribozymes nearly 30 years ago triggered a huge interest in the chemistry and biology of RNAs. Much of the recently made progress focusing on metal ions is addressed in MILS 9. This book, written by 28 internationally recognized experts from 8 nations, provides a most up-to-date view and is thus of special relevance for colleagues teaching courses in biological inorganic chemistry and for researchers dealing, e.g., with nucleic acids, gene expression, and enzymology, but also for those in analytical and bioinorganic chemistry or biophysics. Structural and Catalytic Roles of Metal Ions in RNA describes in an authoritative and timely manner in 12 stimulating chapters, supported by nearly 1600 references, 13 tables, and 75 illustrations, mostly in color, metal ion-binding motifs, methods to detect and characterize metal ion-binding sites, and the role of metal ions in folding and catalysis. It deals with diffuse metal ion binding, RNA quadruplexes, the regulation of riboswitches, metal ions and ribozymes, including artificial ribozymes. The spliceosome, the ribosome, ribozymes involving redox cofactors as well as the binding of kinetically inert metal ions to RNA are also covered.

Structural and Catalytic Roles of Metal Ions in RNA

Structural and Catalytic Roles of Metal Ions in RNA PDF Author: Astrid Sigel
Publisher: Royal Society of Chemistry
ISBN: 1849730946
Category : Science
Languages : en
Pages : 425

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Book Description
The discovery of ribozymes triggered a huge interest in the chemistry and biology of RNAs. Much of the recently made progress focusing on metal ions is addressed in Volume 9. This book, written by 28 internationally recognized experts, provides a most up-to-date view and it is thus of special relevance for colleagues teaching courses in biological inorganic chemistry and for researchers dealing, e.g., with nucleic acids, gene expression, and enzymology, but also for those in analytical and bioinorganic chemistry or biophysics. Structural and Catalytic Roles of Metal Ions in RNA describes metal ion-binding motives, methods to detect and characterize metal ion binding sites, and the role of metal ions in folding and catalysis. It deals with diffuse metal ion binding, RNA quadruplexes, the regulation of riboswitches, metal ions and ribozymes, including artificial ribozymes. The ribosome, ribozymes and redox cofactors, as well as the binding of kinetically inert metal ions to RNA are also considered.

MeRNA

MeRNA PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Metal ions are essential for the folding of RNA into stable tertiary structures and for the catalytic activity of some RNA enzymes. To aid in the study of the roles of metal ions in RNA structural biology, we have created MeRNA (Metals in RNA), a comprehensive compilation of all metal binding sites identified in RNA three-dimensional structures available from the Protein Data Bank (PDB) and Nucleic Acid Database (NDB). Currently, our database contains information relating to binding of 9764 metal ions corresponding to 23 distinct elements; in 256 RNA structures. The metal ion locations were confirmed and ligands characterized using original literature references. MeRNA includes eight manually identified metal-ion binding motifs, which are described in the literature. MeRNA is searchable by PDB identifier, metal ion, method of structure determination, resolution and R-values for X-ray structure, and distance from metal to any RNA atom or to water. New structures with their respective binding motifs will be added to the database as they become available. The MeRNA database will further our understanding of the roles of metal ions in RNA folding and catalysis and have applications in structural and functional analysis, RNA design and engineering.

Interplay between Metal Ions and Nucleic Acids

Interplay between Metal Ions and Nucleic Acids PDF Author: Astrid Sigel
Publisher: Springer Science & Business Media
ISBN: 9400721722
Category : Science
Languages : en
Pages : 386

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Book Description
Interplay between Metal Ions and Nucleic Acids provides in an authoritative and timely manner in 12 stimulating chapters, written by 24 internationally recognized experts from 8 nations, and supported by nearly 1500 references, about 20 tables, and 125 illustrations, many in color, a most up-to-date view on metal ion-nucleic acid interactions; the characterization of which is covered in solution and in the solid state. The volume concentrates on modern developments encompassing topics in the wide range from G-quadruplexes via DNAzymes, catalysis at the DNA scaffold, and metal-mediated base pairs to peptide nucleic acids (PNAs) being thus of relevance, e.g., for chemistry and nanotechnology but also for molecular biology and (genetic) diagnostics.

Lead: Its Effects on Environment and Health

Lead: Its Effects on Environment and Health PDF Author: Astrid Sigel
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110434334
Category : Science
Languages : en
Pages : 596

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Book Description
Volume 17, entitled Lead: Its Effects on Environment and Health of the series Metal Ions in Life Sciences centers on the interrelations between biosystems and lead. The book provides an up-to-date review of the bioinorganic chemistry of this metal and its ions; it covers the biogeochemistry of lead, its use (not only as gasoline additive) and anthropogenic release into the environment, its cycling and speciation in the atmosphere, in waters, soils, and sediments, and also in mammalian organs. The analytical tools to determine and to quantify this toxic element in blood, saliva, urine, hair, etc. are described. The properties of lead(II) complexes formed with amino acids, peptides, proteins (including metallothioneins), nucleobases, nucleotides, nucleic acids, and other ligands of biological relevance are summarized for the solid state and for aqueous solutions as well. All this is important for obtaining a coherent picture on the properties of lead, its effects on plants and toxic actions on mammalian organs. This and more is treated in an authoritative and timely manner in the 16 stimulating chapters of Volume 17, which are written by 36 internationally recognized experts from 13 nations. The impact of this recently again vibrant research area is manifested in nearly 2000 references, over 50 tables and more than 100 illustrations (half in color). Lead: Its Effects on Environment and Health is an essential resource for scientists working in the wide range from material sciences, inorganic biochemistry all the way through to medicine including the clinic ... not forgetting that it also provides excellent information for teaching.

Metal Ions in Biochemistry

Metal Ions in Biochemistry PDF Author: Pabitra Krishna Bhattacharya
Publisher: CRC Press
ISBN: 1000292649
Category : Science
Languages : en
Pages : 293

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Book Description
The second edition of Metal Ions in Biochemistry deals with the multidisciplinary subject of bio-inorganic chemistry, encompassing the disciplines of inorganic chemistry, biochemistry and medicine. The book deals with the role of metal ions in biochemistry, emphasising that biochemistry is mainly the chemistry of metal-biochemical complexes. Hence, the book starts with the structures of biochemicals and the identification of their metal binding sites. Thermodynamic and kinetic properties of the complexes are explained from the point of view of the nature of metal-ligand bonds. Various catalytic and structural roles of metal ions in biochemicals are discussed in detail. Features The role of Na+ and K+ in brain chemistry. The role of zinc insulin in glucose metabolism and its enhancement by vanadium and chromium compounds. Discussion of the role of zinc signals, zinc fingers and cascade effect in biochemistry. Haemoglobin synthesis and the role of vitamin B12 in it. The role of lanthanides in biochemical systems. A detailed discussion of the role of non-metals in biochemistry, a topic missing in most of the books on bio-inorganic chemistry. The study of bio-inorganic chemistry makes biochemists rethink the mechanistic pathways of biochemical reactions mediated by metal ions. There is a realisation of the role of metal complexes and inorganic ions as therapeutics such as iron in leukaemia, thalassemia and sickle cell anaemia, iodine in hypothyroidism and zinc, vanadium and chromium in glucose metabolism. The most recent realisation is of the use of zinc in the prevention and treatment of COVID-19.

Ribozymes and RNA Catalysis

Ribozymes and RNA Catalysis PDF Author: David Malcolm James Lilley
Publisher: Royal Society of Chemistry
ISBN: 0854042539
Category : Science
Languages : en
Pages : 339

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Book Description
Takes the reader through the origins of catalysis in RNA and necessarily includes significant discussion of structure and folding. The main focus of the book concerns chemical mechanism with extensive comment on how, despite the importance of RNA catalysis in the cell, its origins are still poorly understood and often controversial. The reader is given an outline of the important role of RNA catalysis in many aspects of cell function, including RNA processing and translation.

Catalytic RNA

Catalytic RNA PDF Author:
Publisher: Academic Press
ISBN: 0123812879
Category : Science
Languages : en
Pages : 255

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Book Description
This special volume of Progress in Molecular Biology and Translational Science focuses on catalytic RNA. Written by experts in the field, the reviews cover a range of topics, from hammerhead ribozymes to spliceosome catalysis to Varkud satellite and hairpin ribozymes. Contributions from leading authorities Informs and updates on all the latest developments in the field

Fundamentals of RNA Structure and Function

Fundamentals of RNA Structure and Function PDF Author: Neena Grover
Publisher: Springer Nature
ISBN: 3030902145
Category : Medical
Languages : en
Pages : 257

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Book Description
This highly illustrated textbook provides an essential overview on RNA architecture and function, it offers insights into the RNA basics and also explains novel RNA technologies, such as CRISPR-Cas and their applications. In addition, the mRNA based vaccine technology, which has long been tested, also before the COVID-19 pandemic, is discussed and students receive a basic understanding of this important medical application. The textbook is written by Prof. Grover in collaboration with her students and has an easily accessible style. The book provides a great tool for young researchers and students in biology, biomedical engineering or biochemistry, looking for a compact introduction or refresher work on RNA, including the newest findings and technologies. It is an ideal starter to learn about several RNA specific topics and to research them further.

Networked to the Catalytic Core

Networked to the Catalytic Core PDF Author: Tara Lynn Benz-Moy
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The past two decades of functional and structural studies on RNA enzymes have largely focused on revealing active site interactions between ribozymes and their substrates. More recently, active site interactions among ribozyme residues themselves and the substrate have revealed an intricate network of interactions in and around the active site that involves metal ions, metal ion ligands, hydrogen bonding, and stacking interactions. Does this network extend into the broader structure of the RNA? The current studies in this thesis are aimed at understanding how the overall structural scaffold of RNA is involved in catalysis. Peripheral elements that are brought into close proximity via long-range tertiary contacts surround the catalytic core of most group I introns. In the well-studied Tetrahymena group I intron, ablation of each of five long-range tertiary contacts destabilizes the folded ribozyme, indicating a role for these tertiary contacts in overall stability, as expected. But once folded, three of the five tertiary contact mutants exhibit distinct functional roles in catalysis. Structural changes distal from the mutation site, revealed by hydroxyl radical footprinting, suggest that that these contacts are coupled to the catalytic core from a distance. These structural data combined with X-ray crystal structures and phylogenetic data suggest a number of networks that structure functional sites by using long-range tertiary contacts to position rigid helices and their more local tertiary interactions relative to the rest of the RNA. Preliminary data that tests these hypotheses suggest that some, but not all, of these networks between the periphery and the functional sites may be conserved among group I introns and that long-range tertiary contacts as well as more local tertiary interactions such as base triples may act redundantly to maintain the structure of the same regions of RNA. This redundancy could allow RNAs that change conformation over their reaction cycles to rearrange only a few tertiary contacts while maintaining a global fold. With the studies described herein, we are poised to understand the structural networks that couple the peripheral regions of RNA to its catalytic sites. These insights may lead to a better understanding of how structural networks of communication are exploited to facilitate multi-step processes that are driven by more complex RNA enzymes like the ribosome and the spliceosome.