The Pyridine Nucleotide Coenzymes provides a comprehensive discussion of the evolution, properties, and reactions of pyridine nucleotide coenzymes. The pyridine nucleotide coenzymes, NAD and NADP, appear to be among the most versatile of molecules with respect to their biological functions. In addition to their well-documented roles in a large number of oxidation-reduction reactions, these coenzymes are involved in many aspects of metabolic regulation. The book begins by tracing the evolution of coenzymes and pyridine nucleotide coenzymes. This is followed by separate chapters that deal with the static and dynamic properties of the pyridine nucleotide coenzymes; chemistry and solution conformation of the pyridine coenzymes; pyridine nucleotide analogs; and the three-dimensional structures of pyridine nucleotide binding enzymes. Subsequent chapters cover the synthesis and characterization of immobilized coenzymes and derivatives and their applications in affinity chromatography and enzyme reactors; the pathways to quinolinate, a major precursor of pyridine nucleotides; the role of pyridine nucleotides in phagocytosis; and non-oxidation-reduction reactions of pyridine nucleotides.

A cow eats fallen fruit in an apple orchard and runs amok.

The Organic Chemistry of Enzyme-Catalyzed Reactions is not a book on enzymes, but rather a book on the general mechanisms involved in chemical reactions involving enzymes. An enzyme is a protein molecule in a plant or animal that causes specific reactions without itself being permanently altered or destroyed. This is a revised edition of a very successful book, which appeals to both academic and industrial markets. - Illustrates the organic mechanism associated with each enzyme-catalyzed reaction - Makes the connection between organic reaction mechanisms and enzyme mechanisms - Compiles the latest information about molecular mechanisms of enzyme reactions - Accompanied by clearly drawn structures, schemes, and figures - Includes an extensive bibliography on enzyme mechanisms covering the last 30 years - Explains how enzymes can accelerate the rates of chemical reactions with high specificity - Provides approaches to the design of inhibitors of enzyme-catalyzed reactions - Categorizes the cofactors that are appropriate for catalyzing different classes of reactions - Shows how chemical enzyme models are used for mechanistic studies - Describes catalytic antibody design and mechanism - Includes problem sets and solutions for each chapter - Written in an informal and didactic style

Extensive and up-to-date review of key metabolic processes in bacteria and archaea and how metabolism is regulated under various conditions.

Flavins and flavoproteins are a widely investigated and highly versatile group of compounds. Participation of these compounds in photochemistry and photobiology processes are of particular importance in the fields of biology, chemistry and medicine. Written by leading experts in the field each section of the book includes a historical overview of the subject, state of the art developments and future perspectives. Flavins: Photochemistry and Photobiology begins with the properties and applications of flavins, including their photochemistry in aqueous and organic solutions. Subsequent sections discuss riboflavin as a visible light sensitizer in the photo degradation of drugs, antiviral and antibacterial effects, the role of flavins in light induced toxicity and blue light initiated DNA repair by photolyase. Finally there are sections on the flavin based photoreceptors in plants, bacteria and eukaryotic photosynthetic flagelettes. This book brings together leading experts with a unique interdisciplinary emphasis, to provide an authoritative resource on flavins and their role in photochemistry and photobiology.