Artificial Nucleases

Artificial Nucleases
Author: Marina A. Zenkova
Publisher: Springer Science & Business Media
Total Pages: 304
Release: 2012-12-06
Genre: Science
ISBN: 364218510X

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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.

Metal Complex - DNA Interactions

Metal Complex - DNA Interactions
Author: Nick Hadjiliadis
Publisher: John Wiley & Sons
Total Pages: 544
Release: 2009-03-30
Genre: Science
ISBN: 9781405194105

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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.

Artificial Nucleases

Artificial Nucleases
Author: Kimberly Kolasa Lotter
Publisher:
Total Pages: 252
Release: 1994
Genre:
ISBN:

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Metal Complexes as an Artificial Metallonucleases

Metal Complexes as an Artificial Metallonucleases
Author: Patidar Anshul P
Publisher: LAP Lambert Academic Publishing
Total Pages: 108
Release: 2015-10-08
Genre:
ISBN: 9783659793066

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The present Book describes research on synthesis and characterization of metal complexes for biological evaluations. Metal ions complexes can be introduced into a biological system either for therapeutic effect or as diagnostic aids. Here, focus on this book for design and synthesis of copper (II) and palladium (II) complexes, which exhibit, antibacterial activity (MIC) against Gram (-ve) and Gram (+ve) bacteria, Interaction between small molecules and DNA can often cause DNA damage in cancer cells and also investigate cytotoxicity studies.

Advances in the Development of Artificial Metalloenzymes

Advances in the Development of Artificial Metalloenzymes
Author: Tatjana N. Parac-Vogt
Publisher: Frontiers Media SA
Total Pages: 167
Release: 2019-11-05
Genre:
ISBN: 2889631532

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Reactions catalyzed by metalloenzymes have great potential for applications in the biotechnology and pharmaceutical industries. While only a few of these enzymes have yet been used in such applications, in the last few decades numerous efficient, selective, environmentally friendly and economical synthetic analogues have been described, including supramolecular, polymeric, nanoparticulate and lowmolecular- weight organometallic complexes, and metal organic frameworks. In this Research Topic, we present a collection of original research and review articles that show significant recent advances made in the rational design of such artificial metalloenzymes.

Inorganic Chemical Biology

Inorganic Chemical Biology
Author: Gilles Gasser
Publisher: John Wiley & Sons
Total Pages: 437
Release: 2014-06-23
Genre: Science
ISBN: 111851002X

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Understanding, identifying and influencing the biological systems are the primary objectives of chemical biology. From this perspective, metal complexes have always been of great assistance to chemical biologists, for example, in structural identification and purification of essential biomolecules, for visualizing cellular organelles or to inhibit specific enzymes. This inorganic side of chemical biology, which continues to receive considerable attention, is referred to as inorganic chemical biology. Inorganic Chemical Biology: Principles, Techniques and Applications provides a comprehensive overview of the current and emerging role of metal complexes in chemical biology. Throughout all of the chapters there is a strong emphasis on fundamental theoretical chemistry and experiments that have been carried out in living cells or organisms. Outlooks for the future applications of metal complexes in chemical biology are also discussed. Topics covered include: • Metal complexes as tools for structural biology • IMAC, AAS, XRF and MS as detection techniques for metals in chemical biology • Cell and organism imaging and probing DNA using metal and metal carbonyl complexes • Detection of metal ions, anions and small molecules using metal complexes • Photo-release of metal ions in living cells • Metal complexes as enzyme inhibitors and catalysts in living cells Written by a team of international experts, Inorganic Chemical Biology: Principles, Techniques and Applications is a must-have for bioinorganic, bioorganometallic and medicinal chemists as well as chemical biologists working in both academia and industry.

Schiff Base Metal Complexes

Schiff Base Metal Complexes
Author: Pranjit Barman
Publisher: John Wiley & Sons
Total Pages: 229
Release: 2023-05-15
Genre: Science
ISBN: 3527350705

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Schiff Base Metal Complexes Schiff bases are compounds created from a condensed amino compounds, which frequently form complexes with metal ions. They have diverse applications in biology, catalysis, material science and industry. Understanding these compounds, their properties, and the available methods for synthesizing them is a key to unlocking industrial innovation. Schiff Base Metal Complexes provides a comprehensive overview of these compounds. It introduces the compounds and their properties before discussing their various synthesizing methods. A survey of existing and potential applications gives a complete picture and makes this a crucial guide for researchers and industry professionals looking to work with Schiff base complexes. Schiff Base Metal Complexes readers will also find: A systematic and organized structure designed to make information instantly accessible Detailed coverage of thermal synthesis, photochemical synthesis, and more Challenges with different methods described in order to help readers make the correct choice for their own work Schiff Base Metal Complexes is a useful reference for organic chemists, materials scientists, and researchers or industry professionals working with organometallics.