Interactions of Dinuclear Transition Metal Complexes with Amino Acids, Nucleotides, and DNA

Interactions of Dinuclear Transition Metal Complexes with Amino Acids, Nucleotides, and DNA PDF Author: Jennifer Simone Hess
Publisher:
ISBN:
Category : Amino acids
Languages : en
Pages : 400

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Interactions of Dinuclear Transition Metal Complexes with Amino Acids, Nucleotides, and DNA

Interactions of Dinuclear Transition Metal Complexes with Amino Acids, Nucleotides, and DNA PDF Author: Jennifer Simone Hess
Publisher:
ISBN:
Category : Amino acids
Languages : en
Pages : 400

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Book Description


Metal Complex - DNA Interactions

Metal Complex - DNA Interactions PDF Author: Nick Hadjiliadis
Publisher: John Wiley & Sons
ISBN: 9781405194105
Category : Science
Languages : en
Pages : 544

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Book Description
Metal ions and metal complexes have long been recognized ascritically important components of nucleic acid chemistry, both inregulation of gene expression and as promising therapeutic agents.Understanding how metal complexes interact with DNA has become anactive research area at the interface between chemistry, molecularbiology and medicine. Metal Complex - DNA Interactions provides a comprehensiveoverview of this increasingly diverse field, presenting recentdevelopments and the latest research with particular emphasis onmetal-based drugs and metal ion toxicity. The text is divided intofour parts: Basic Structural and Kinetic Aspects: includes chapterson sequence-selective metal binding to DNA and thermodynamicmodels. Medical Applications: focuses on anticancer platinumdrugs, including discussions on DNA repair in antitumor effects ofplatinum drugs and photo-dynamic therapy. DNA-Recognition - Nucleases and Sensor: describesprobes for DNA recognition, artificial restriction agents,metallo-DNAzymes for metal sensing applications and metal iondependent catalysis in nucleic acid enzymes. Toxicological Aspects: deals with structural studies ofmercury–DNA interactions, chromium-induced DNA damage andrepair, and the effect of arsenic and nickel on DNAintegrity. This book will be a valuable resource for academic researchersand professionals from a range of pharmaceutical and chemicalindustries, particularly those involved in the development of newand less toxic anticancer metallo-drugs, and in the field ofenvironmental and toxicological chemistry.

Drug-DNA Interactions

Drug-DNA Interactions PDF Author: Kazuo Nakamoto
Publisher: John Wiley & Sons
ISBN: 0470369167
Category : Science
Languages : en
Pages : 475

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Book Description
Learn vital information about drug-DNA interactions from Drug-DNA Interactions: Structures and Spectra, the only comprehensive book written about this topic. Understand the types of structural and bonding information that can be obtained using specific physico-chemical methods and discover how to design new drugs that are more effective than current treatments and have fewer side effects. Find detailed information about X-ray crystallography, NMR spectroscopy, molecular modeling, and optical spectroscopy such as UV-Visible absorption, fluorescence, circular dichroism (CD), flow linear dichroism (FLD), infrared (IR) and Raman spectroscopy.

Nucleic Acids

Nucleic Acids PDF Author: Irshad Ul Haq Bhat
Publisher: Academic Press
ISBN: 0128205040
Category : Medical
Languages : en
Pages : 248

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Book Description
Nucleic Acids: A Natural Target for Newly Designed Metal Chelate Based Drugs discusses how human diseases are becoming more costly to treat, along with updates on the resistance offered by disease-causing agents. The abundance of drugs in the market has provided great relief to patients, but side effects can destroy the immune system of the body. Patients need to boost their immune system, and at the same time cover expenses incurred to cure disease. Thus, a paradigm shift is needed to design a drug molecule with low cost and easy availability. Metal complexes can be a great example of such a shift, as metal ions are components of biological molecules and can achieve good binding capability to specific targets while not allowing them to damage healthy cell system. Therefore, in this book, a comprehensive compilation of recent data is provided, including the structural elucidation of metal complexes by advanced techniques and the binding pattern of metal complexes with specific targets. Focuses on recent advances and methods adopted for generating new metal-based molecules and their interactions with biomolecules, especially nucleic acids Addresses challenges for developing new metal-based drugs Examines advances in optical techniques for the characterization of metal-based drugs

Artificial Nucleases

Artificial Nucleases PDF Author: Marina A. Zenkova
Publisher: Springer Science & Business Media
ISBN: 9783540201120
Category : Medical
Languages : en
Pages : 330

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Book Description
The development of agents capable of cleaving RNA and DNA has attracted considerable attention from researchers in the last few years, because of the immediate and very important applications they can find in the emerging fields of biotechnology and pharmacology. There are essentially two classes of these agents - nucleases that occur naturally inside cells and synthetically produced artificial nucleases. The first class includes protein enzyme nucle ases and catalytic RNA structured ribozymes that perform cleavage of the phosphodiester bonds in nucleic acids according to a hydrolytic pathway in the course of different biochemical processes in the cell. A different pathway is used by some antibiotics which cleave DNA via redox-based mechanisms resulting in oxidative damage of nucleotide units and breakage of the DNA backbone. The above molecules are indispensable tools for manipulating nucleic acids and processing RNA; DNA-cleaving antibiotics and cytotoxic ribonucleases have demonstrated utility as chemotherapeutic agents. The second class, artificial nucleases, are rationally designed to imitate the active centers of natural enzymes by simple structures possessing minimal sets of the most important characteristics that are essential for catalysis. A dif ferent approach, in vitro selection, was also used to create artificial RNA and DNA enzymes capable of cleaving RNA. Being less efficient and specific as compared to the natural enzymes, the primitive mimics are smaller and robust and can function in a broad range of conditions.

DNA-targeting Molecules as Therapeutic Agents

DNA-targeting Molecules as Therapeutic Agents PDF Author: Michael J Waring
Publisher: Royal Society of Chemistry
ISBN: 1788014286
Category : Science
Languages : en
Pages : 432

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Book Description
There have been remarkable advances towards discovering agents that exhibit selectivity and sequence-specificity for DNA, as well as understanding the interactions that underlie its propensity to bind molecules. This progress has important applications in many areas of biotechnology and medicine, notably in cancer treatment as well as in future gene targeting therapies. The editor and contributing authors are leaders in their fields and provide useful perspectives from diverse and interdisciplinary backgrounds on the current status of this broad area. The role played by chemistry is a unifying theme. Early chapters cover methodologies to evaluate DNA-interactive agents and then the book provides examples of DNA-interactive molecules and technologies in development as therapeutic agents. DNA-binding metal complexes, peptide and polyamide–DNA interactions, and gene targeting tools are some of the most compelling topics treated in depth. This book will be a valuable resource for postgraduate students and researchers in chemical biology, biochemistry, structural biology and medicinal fields. It will also be of interest to supramolecular chemists and biophysicists.

Amide Bond Activation

Amide Bond Activation PDF Author: Michal Szostak
Publisher: MDPI
ISBN: 3039212036
Category : Science
Languages : en
Pages : 466

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Book Description
The amide bond represents a privileged motif in chemistry. The recent years have witnessed an explosion of interest in the development of new chemical transformations of amides. These developments cover an impressive range of catalytic N–C bond activation in electrophilic, Lewis acid, radical, and nucleophilic reaction pathways, among other transformations. Equally relevant are structural and theoretical studies that provide the basis for chemoselective manipulation of amidic resonance. This monograph on amide bonds offers a broad survey of recent advances in activation of amides and addresses various approaches in the field.

Cisplatin

Cisplatin PDF Author: Bernhard Lippert
Publisher: John Wiley & Sons
ISBN: 9783906390208
Category : Medical
Languages : en
Pages : 630

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Book Description
30 years after its discovery as an antitumor agent, cisplatin represents today one of the most successful drugs in chemotherapy. This book is intended to reminisce this event, to take inventory, and to point out new lines of development in this field. Divided in 6 sections and 22 chapters, the book provides an up-to-date account on topics such as - the chemistry and biochemistry of cisplatin, - the clinical status of Pt anticancer drugs, - the impact of cisplatin on inorganic and coordination chemistry, - new developments in drug design, testing and delivery. It also includes a chapter describing the historical development of the discovery of cisplatin. The ultimate question - How does cisplatin kill a cell? - is yet to be answered, but there are now new links suggesting how Pt binding to DNA may trigger a cascade of cellular reactions that eventually result in apoptosis. p53 and a series of damage recognition proteins of the HMG-domain family appear to be involved. The book addresses the problem of mutagenicity of Pt drugs and raises the question of the possible relevance of the minor DNA adducts, e.g. of interstrand cross-links, and the possible use of trans-(NH3)2Pt(II)-modified oligonucleotides in antisense and antigene strategies. Our present understanding of reactions of cisplatin with DNA is based upon numerous model studies (from isolated model nucleobases to short DNA fragments) and application of a large body of spectroscopic and other physico-chemical techniques. Thanks to these efforts there is presently no other metal ion whose reactions with nucleic acids are better understood than Pt. In a series of chapters, basic studies on the interactions of Pt electrophiles with nucleobases, oligonucleotides, DNA, amino acids, peptides and proteins are reported, which use, among others, sophisticated NMR techniques or X-ray crystallography, to get remarkable understanding of details on such reactions. Reactivity of cisplatin, once bound to DNA and formerly believed to be inert enough to stay, is an emerging phenomenon. It has (not yet) widely been studied but is potentially extremely important. Medicinal bioinorganic chemistry - the role of metal compounds in medicine - has received an enormous boost from cisplatin, and so has bioinorganic chemistry as a whole. There is hardly a better example than cisplatin to demonstrate what bioinorganic chemistry is all about: The marriage between classic inorganic (coordination) chemistry and the other life sciences - medicine, pharmacy, biology, biochemistry. Cisplatin has left its mark also on areas that are generally considered largely inorganic. The subject of mixed-valance Pt compounds is an example: From the sleeping beauty it made its way to the headlines of scientific journals, thanks to a class of novel Pt antitumor agents, the so-called "platinum pyrimidine blues". In the aftermath diplatinum (III) compounds were recognized and studies in large numbers, and now an organometalic chemistry of these diplatinum (III) species is beginning to emerge. The final section of the book is concerned with new developments such as novel di- and trinuclear Pt(II) drugs with DNA binding properties different from those of cisplatin, with orally active Pt(IV) drugs which are presently in clinical studies, and with attempts to modify combinatorial chemistry in such a way that it may become applicable to fast screening of Pt antitumor drugs. The potential of including computational methods in solving questions of Pt-DNA interactions is critically dealt with in the concluding chapter.

Bioinorganic Chemistry

Bioinorganic Chemistry PDF Author: Alfred Trautwein
Publisher: Wiley-VCH
ISBN:
Category : Medical
Languages : en
Pages : 792

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Book Description
Whenever nature has a difficult task to perform it can be expected that a metal ion or a cluster of such ions is employed. Metal ions are indispensable for the integrity of biological structures and the catalysis of biological reactions. Knowledge about their mode of action, their uptake in the cell, their handling and their storage is important for the development of new pharmaceuticals. This book summarizes latest results of interdisciplinary research on several universities.

Hard and Soft Acids and Bases

Hard and Soft Acids and Bases PDF Author: Ralph G. Pearson
Publisher: Hutchinson Ross Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 500

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Book Description