Author: Mark Doolittle
Publisher: Springer Science & Business Media
ISBN: 1592595812
Category : Science
Languages : en
Pages : 362
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Book Description
The lipases and phospholipases represent a diverse group of enzymes that are expressed in animals, plants, fungi, and bacteria. Their ubiquitous distribution among all species is a testament to the essential roles played by these enzymes in lipid storage, mobilization and metabolism, membrane homeostasis and remodeling, endocrine and immune functions, and signal tra- duction. In humans, lipases and phospholipases are also thought to contribute to complex diseases, such as atherosclerosis, obesity, arthritis, and cancer, as well as to single gene defects, such as Wolman's disease and Type I hyperlipoproteinemia. Enzymatically, the lipases are unique, since they hydrolyze substrates that are either insoluble, or only partly soluble, in aq- ous solvents; thus, enzyme catalysis takes place at a lipid-water interface. The interface comprises at least two, and often more, discrete bulk and s- face phases, in which the enzyme, substrate, and products oflipolysis disperse among these phases based on their physical properties. Furthermore, the d- tribution of these components changes continuously as lipolysis proceeds. Thus, the lipases and phospholipases are fundamentally different from any other enzyme because of the physical complexity of the environment in which catalysis occurs.
Author: Georgina Sandoval
Publisher: Humana
ISBN: 9781493993611
Category : Science
Languages : en
Pages : 437
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Book Description
This volume provides an essential update on fundamental issues, current and new applications, as well as practical protocols to explore the extensive applications of lipases and the potential application of phospholipases. After an overview, the book delves into activity screening and expression, optimization of the biocatalyst production and performances, and applications of lipases, phospholipases, and esterases. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and accessible, Lipases and Phospholipases: Methods and Protocols, Second Editionserves as an updated reference book for the large scientific community, both seasoned and novice, working with lipases, phospholipases, and related enzymes.
Author: Günter Müller
Publisher: John Wiley & Sons
ISBN: 3527605703
Category : Science
Languages : en
Pages : 354
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Book Description
Lipases and Phospholipases are key control elements in mammalian metabolism. They share many common features that set them apart from other metabolic enzyme classes, most importantly their association with biological membranes. Their potential as drug targets for the treatment of metabolic diseases is widely recognized, and the first lipase inhibitor drugs have been successfully introduced. Providing drug developers with a firm foundation for lipase-centered drug design, the editors of this volume have assembled experts from different scientific disciplines to create a comprehensive handbook for all pharmaceutical chemists, biochemists and physiologists working with lipases. The authors examine fundamental aspects of lipase function in vitro and in vivo, explaining how this knowledge may be used to develop lipase assays. They also treat the physiological roles of lipases in normal and disordered metabolism, as well as strategies to target lipases for the treatment of diabetes, obesity and related disorders. Additional topics include the application of phospholipases for liposome-based drug delivery and their use as diagnostic tools.
Author: John M. Walker
Publisher:
ISBN:
Category : Molecular biology -- v.236. Plant functional genomics -- v.237. G protein signaling -- v.238. Biopolymer methods in tissue engineering -- v.239. Cell migration in inflammation and immunity -- v.240. Mammalian artificial chromosomes -- v.241. Cell cycle checkpoint control protocols -- v.242. Atomic force microscopy -- v.243. Chiral separations: Methods and protocols -- v.244. Protein purification protocols -- v.245-6. Gene delivery to mammalian cells -- v.247. Drosophila cytogenetics protocols -- v.248. Antibody engineering -- v.249. Cytokine protocols -- v.251. HPLC of peptides and proteins: Methods and protocols -- v.265. RNA interference, editing, and modification -- v.274. Photosynthesis research protocols -- v.318. Plant cell culture protocols -- v.323. Arabidopsis protocols
Languages : en
Pages :
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Book Description
Author: Hans Brockerhoff
Publisher: Elsevier
ISBN: 0323155162
Category : Science
Languages : en
Pages : 343
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Book Description
Lipolytic Enzymes focuses on the biochemistry of lipolytic enzymes, particularly, pancreatic lipase and phospholipase 2 as well as their structure and catalytic mechanism. It explores the kinetics of lipolysis, the digestive lipases of nonmammalian animals, the assay and purification of cholesterol esterases and phospholipases, the method phospholipases use in hydrolyzing phospholipids, and the adaptive mechanism of lipolytic enzymes at the lipid-water interface. Organized into eight chapters, this book begins with an overview of the importance of lipolytic enzymes, including their medical, therapeutic, food, and other industrial applications. It then proceeds with a discussion on the classification of lipolytic enzymes according to the type of bond they hydrolyze and the substrates on which they act. The next chapters look at the substrates and supersubstrates of lipolytic enzymes, along with their maximal velocity and the Michaelis constant. Moreover, the book talks about the detection and assay of lipases, the molecular properties of pancreatic cholesterol esterases, the stimulating effect of bile salts on cholesterol esterases, the hydrolytic cleavage of carboxyl esterases, and the occurrence and distribution of phosphohydrolases. A chapter discussing the two groups of lipolytic enzymes (the first containing enzymes of broad substrate specificity and not requiring cofactors; the second containing metalloenzymes with very narrow substrate requirements) concludes this book. This book is a valuable resource for chemists, biochemists, and those working in the field of nutritional sciences.
Author: M.I. Mackness
Publisher: Springer
ISBN: 9781489909947
Category : Medical
Languages : en
Pages : 279
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Book Description
The NATO-Advanced Research Workshop "Esterases, Lipases and Phospholipases: From Structure to Clinical Significance" was held at the University of Bordeaux II, France from 22nd- 24th September 1993 under the Directorship of Professor Michel Clerc of the University of Bordeaux II. The meeting was organised by Hugues Chap (INSERM U 326, Toulouse, France), Georges Ferard (University of Strasbourg, France), Wolfgang Junge (University of Kiel, Germany) and Michael Mackness (University of Manchester, UK). In recent years it has become increasingly apparent that hydrolytic enzymes of the esterase, lipase and phospholipase type play central roles in the pathophysiology of many human diseases. The purpose of this NATO-ARW was to bring together experts (both clinical and scientific) in all three interrelated fields to review the current basic and clinical position and discuss future developments particularly with respect to future research aimed at determining the basic biochemical lesion involving hydrolytic enzymes involved in human disease and the use of these enzymes in diagnosis. As well as formal lectures from established researchers, the meeting also involved a number of lively round-table discussions on future developments and presentations from younger research workers, all of which are recorded in this Proceedings and which contribute to the success of the meeting.
Author: Hamdi Sassi
Publisher: Nova Science Publishers
ISBN: 9781620813942
Category : Lipase
Languages : en
Pages : 235
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Book Description
Lipases are ubiquitous enzymes which catalyze the hydrolysis of triacylglycerols to glycerols and free fatty acids. Due to their characteristics of enantioselectivity and regioselectivity and stability in organic solvents, they have gained importance in industrial applications. In this book, the authors examine the functions, synthesis and role in disease of lipases. Topics discussed include the action of lipases as a biotechnological tool; fungal lipases in biocatalysis; secreted phospholipase A2 inhibitors from cynara cardunculus L. and aloe vera extract as a potential therapeutic drug for inflammatory diseases; lipoprotein lipase activity in sickle cell nephropathy; lipases in the pharmaceutical industry; and yeast cell surface display of lipases.
Author: J.C. Kader
Publisher: Springer Science & Business Media
ISBN: 9401583943
Category : Science
Languages : en
Pages : 598
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Book Description
A collection of papers that comprehensively describe the major areas of research on lipid metabolism of plants. State-of-the-art knowledge about research on fatty acid and glycerolipid biosynthesis, isoprenoid metabolism, membrane structure and organization, lipid oxidation and degradation, lipids as intracellular and extracellular messengers, lipids and environment, oil seeds and gene technology is reviewed. The different topics covered show that modern tools of plant cellular and molecular biology, as well as molecular genetics, have been recently used to characterize several key enzymes of plant lipid metabolism (in particular, desaturases, thioesterases, fatty acid synthetase) and to isolate corresponding cDNAs and genomic clones, allowing the use of genetic engineering methods to modify the composition of membranes or storage lipids. These findings open fascinating perspectives, both for establishing the roles of lipids in membrane function and intracellular signalling and for adapting the composition of seed oil to the industrial needs. This book will be a good reference source for research scientists, advanced students and industrialists wishing to follow the considerable progress made in recent years on plant lipid metabolism and to envision the new opportunities offered by genetic engineering for the development of novel oil seeds.
Author: Uwe Theo Bornscheuer
Publisher: Wiley-Blackwell
ISBN:
Category : Science
Languages : en
Pages : 456
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Book Description
Enzymatic methods of lipid modification, particularly of fats and oils, have developed rapidly since the 1980s. In parallel to the rapid progress in research a wide range of applications have emerged, e.g. in the food industry. The book is written by leading experts in the field and reflects the state-of-the-art of enzymatic lipid modification. It provides the reader with guidelines how to select suitable enzymes and how to apply them efficiently. Applications of lipases and phospholipases, lipoxygenases and P450-monooxygenases and the use of whole-cell systems in lipid modification are described. Cloning, expression and mutagenesis as well as attempts to understand the molecular basis of specificity and stereoselectivity are outlined. In addition engineering aspects and the choice of solvent systems are addressed.
Author: J.T. Davies
Publisher: Academic Press
ISBN: 0323148344
Category : Science
Languages : en
Pages : 507
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Book Description
Interfacial Phenomena examines the fundamental properties of various liquid interfaces. This book discusses the physics of surfaces; electrostatic and electrokinetic phenomena; and adsorption at liquid interfaces. The properties of monolayers; reactions at liquid surfaces; diffusion through interfaces; and disperse systems and adhesion are also deliberated. Other topics include the vapor pressures over curved surfaces; electrical capacity of the double layer; applications of electrophoresis; and thermodynamics of adsorption and desorption. The experimental methods of spreading films at the oil-water interface; penetration into monolayers; experiments on dynamic systems; and spontaneous emulsification are likewise covered in this text. This book is beneficial to chemical engineers and students concerned with interfacial phenomena.
