Download or read book Reconstituted Sodium Pump written by Beatrice Maier Anner and published by GRIN Verlag. This book was released on 2024-04-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2024 in the subject Chemistry - Bio-chemistry, language: English, abstract: The sodium pump, also called Na, K-ATPase (NKA) is a biomotor inserted in the membrane of all living cells; it extrudes sodium ions from the cell interior and replaces them with potassium ions. This is a fundamental and vital process. Furthermore, the sodium pump is also a receptor for pharmacological and toxicological compounds, such as the heart drug digitoxin and the arrow poison ouabain. Around 1974 it became possible to extract the sodium pump from the cell membrane and insert it into artificial phospholipid vesicles where it worked in the same way as in the cell. Now, the pump could be studied in its pure form on a molecular level. The author has been involved in this pioneering research and tells some fascinating stories concerning the first ultrastructural description of the reconstituted sodium pump in collaboration with specialists at Arhus University in Denmark and at Duke University in the US, and about the use of the reconstituted sodium pump for testing an unknown inhibitory compound in collaboration with Harvard Medical School.
Download or read book The Overall and Some Partial Reactions of the Sodium Pump Studied by Reconstituted Na K ATPase written by Flemming Cornelius and published by . This book was released on 1991 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Discovery of the Cellular Sodium Pump in the 20th Century written by Beatrice Maier Anner and published by GRIN Verlag. This book was released on 2024-02-26 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2024 in the subject Chemistry - Bio-chemistry, , language: English, abstract: During her doctoral and postdoctoral studies, Beatrice Maier Anner became familiar with a fascinating biological system, called sodium pump by the physiologists and Na,K-ATPase by the biochemists; it is a sort of biomotor located in the cell membrane, which constantly expulses sodium (Na) ions from the cell interior and replaces them by potassium (K) ions, at the expense of chemical energy provided by adenosine-triphosphate (ATP) which is cleaved to adenosine-diphosphate (ADP) by the Na,K-ATPase, which gets its pump energy from the cleavage of this chemical bond. There would be no life without this fundamental biological system. Interestingly, it is also a pharmacological receptor, i.e. compounds extracted from the Digitalis plant of from the toad bind to the pump and block it, hence the toxicity of e.g. digitoxin or the toad's bufotoxins. The author has acquired extensive practical and theoretical knowledge of this biological system, acquired at the Baylor College of Medicine, Houston, TX, USA consisting in inserting purified functional Na,K-ATPase into artificial membranes (liposomes) in order to study the pump activity on a molecular level. The present book is a unique historical overview from the discovery and purification of the sodium pump to its reconstitution in artificial membranes in the 20th century. This short book permits to become rapidly familiar with this fascinating biomotor and to find unique historical sources.
Download or read book The Overall and Some Partial Reactions of the Sodium Pump Studied by Reconstituted Na K ATPase written by Flemming Cornelius and published by . This book was released on 1991 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sodium Pump written by Society of General Physiologists. Symposium and published by Rockefeller Univ. Press. This book was released on 1991 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sodium Pump written by Ernst Bamberg and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sodium of animal cell membranes converts the chemical energy obtained from the hydrolysis of adenosine 5' -triphosphate into a movement of the cations Na + and K + against an electrochemical gradient. The gradient is used subse quently as an energy source to drive the uptake of metabolic substrates in polar epithelial cells and to use it for purposes of communications in excitable cells. The biological importance of the sodium pump is evident from the fact that be tween 20-70% of the cell's metabolic energy is consumed for the pumping pro cess. Moreover, the sodium pump is an important biological system involved in regulatory processes like the maintenance of the cells' and organism's water me tabolism. It is therefore understandable that special cellular demands are han dled better by special isoforms of the sodium pump, that the expression of the sodium pump and their isoforms is regulated by hormones as is the activity of the sodium pump via hormone-regulated protein kinases. Additionally, the sodium pump itself seems to be a receptor for a putative new group of hormones, the endogenous digitalis-like substances, which still have to be defined in most cases in their structure. This group of substances has its chemically well known coun terpart in steroids from plant and toad origin which are generally known as "car diac glycosides". They are in medical use since at least 200 years in medicine in the treatment of heart diseases.
Download or read book Basic Neurochemistry written by R. Wayne Albers and published by Academic Press. This book was released on 2011-11-02 with total page 1121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic Neurochemistry, Eighth Edition, is the updated version of the outstanding and comprehensive classic text on neurochemistry. For more than forty years, this text has been the worldwide standard for information on the biochemistry of the nervous system, serving as a resource for postgraduate trainees and teachers in neurology, psychiatry, and basic neuroscience, as well as for medical, graduate, and postgraduate students and instructors in the neurosciences. The text has evolved, as intended, with the science. This new edition continues to cover the basics of neurochemistry as in the earlier editions, along with expanded and additional coverage of new research from intracellular trafficking, stem cells, adult neurogenesis, regeneration, and lipid messengers. It contains expanded coverage of all major neurodegenerative and psychiatric disorders, including the neurochemistry of addiction, pain, and hearing and balance; the neurobiology of learning and memory; sleep; myelin structure, development, and disease; autism; and neuroimmunology. Completely updated text with new authors and material, and many entirely new chapters Over 400 fully revised figures in splendid color 61 chapters covering the range of cellular, molecular and medical neuroscience Translational science boxes emphasizing the connections between basic and clinical neuroscience Companion website at http://elsevierdirect.com/companions/9780123749475
Download or read book ASHP R INJECTABLE DRUG INFORMATION TM 2021 EDITION written by ASHP. and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrogenic Ion Pumps written by Peter Läuger and published by Sinauer Associates, Incorporated. This book was released on 1991 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrogenic ion pumps convert chemical, reduction-oxidation, or light energy- into ion concentration differences across all living cells. They are the engines that run cells. In this text, Dr Lunger develops the principles of physical chemistry required to understand the functions of these macromolecules.
Download or read book The Enzymes of Biological Membranes written by Anthony Martonosi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much of the information currently available on the transport systems of bacterial and animal cell membranes and their mode of coupling to metabolic supply of energy can be found in this volume. Consideration of the participating enzymes dictated the choice of topics: Several transport systems where little information is available on the enzymology of the process are not included, while separate chapters deal with y-glutamyl transpeptidase and intestinal disaccharidases which meet many of the requirements of transport enzymes. The volume also includes two chapters on photosynthetic membranes as a general introduction to the topic. Other aspects of biological transport and photosynthesis will be developed in detail in a forthcoming volume now in preparation. These chapters reveal the excitement and rapid advance of the field, the daily reports of new concepts, new techniques, and new experimental findings which instantly interact to generate further progress. Our aim was to provide a starting point for those who are just beginning, and an opportunity for others to stop, take stock, and start in a new direction. My warmest thanks to all who contributed to this volume.
Download or read book Molecular Biology of The Cell written by Bruce Alberts and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ATPases written by A.G. Lee and published by Elsevier. This book was released on 1996-12-17 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 5 of Biomembranes covers an important group of membrane proteins, the ATPases. The P-type ATPases couple the hydrolysis of ATP to the movement of ions across a membrane and are characterized by the formation of a phosphoyrlated intermediate. Included are the plasma membrane and muscle sarcoplasmic reticulum Ca2+ -ATPases, the (Na+ -K+) -ATPase, the gastric (H+ -K+) -ATPase, the plasma membrane H+ -ATPase of fungi and plants, the Mg2+ - transport ATPase, the Salmonella typhimurium, and the K+ -ATPase of Escherichia coli, KdpB. The other important classes of ATPase in eukaryotic systems are the vacuolar H+ -ATPases and the F0F1 ATP synthase, and, in bacteria, the anion-translocating ATPases, responsible for resistance to arsenicals and antimonials, and the (Na+ -Mg2+) -ATPase of Acholeplasma. Finally, eukaryotic systems contain a variety of ectonucleotidases important, for example, in hydrolysis of extracellular ATP released as a cotransmitter from cholinergic and adrenergic nerve terminals. Volume 5 of Biomembranes explores structure-function relationships for these mebrane-bound ATPases.
Download or read book Artificial and Reconstituted Membrane Systems written by J. Robin Harris and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of 11 chapters is devoted to a survey of artificial and reconsti tuted membrane systems. These are fundamental themes and areas of great current importance in membrane biochemistry. They also relate well to the founding concept of this series, namely, to present studies that progressively work toward and provide us with an "integrated view of the cell. " In this volume, it is the application of a wide range of physiochemical and biochemi cal techniques to the study of membrane lipids and proteins which serves to demonstrate the significant progress that has been made in this field over the past 25 years. From the understanding of simplified artificial systems, it is hoped that it will ultimately be possible to gain a more accurate understanding of natural biological membranes, in all their diversity. This book is an appropriate successor to Volume 13 of the series, which deals with fluorescence studies on biological membranes. Indeed, the present chapter by Lesley Davenport and colleagues was originally due for inclusion in Volume 13, but has been held over for inclusion in this volume, where it integrates remarkably well with the other topics. The extremely varied and interesting contents of this volume are now briefly outlined. In Chapter I, Jacqueline A. Reynolds and Darrell R. McCaslin pres ent a pertinent survey of the interaction of detergents with membrane lipids and proteins, together with an assessment of the reconstitution process.
Download or read book Biochemical Aspects of Renal Function written by B. D. Ross and published by Elsevier. This book was released on 2013-09-17 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochemical Aspects of Renal Function is a collection of papers from the Fifth International Symposium on the Biochemical Aspects of Renal Function. The materials presented details the advancement in the understanding of various areas in the biochemistry of renal function. The title first covers the metabolic studies in kidney, and then proceeds to tackling intermediary metabolism and its regulation. Next, the selection discusses the biochemistry of filtration and reabsorption. The last chapter covers renal work and ATP. The book will be of great interest to students, researchers, and practitioners of medicine, biochemistry, and physiological sciences.
Download or read book The Sodium Pump written by Ian Glynn and published by . This book was released on 1985 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrogenic Transport written by Mordecai P. Blaustein and published by Lippincott Williams & Wilkins. This book was released on 1984 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monovalent Cations in Biological Systems written by Charles A. Pasternak and published by CRC Press. This book was released on 1990-03-26 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume provides an integrated overview of the subject of monovalent cations, specifically aimed at students and researchers. It is divided into two parts: the first deals with the processes by which monovalent cations are transported across biological membranes; the second deals with the processes that are affected by changes in intracellular cations. Each chapter describes in simple biochemical terms the interaction between one or more monovalent cations and a particular biological system of importance to current understanding of body function in health and disease. This useful publication is invaluable to students and researchers in biochemistry, physiology, neurology, pharmacology, anesthesiology, cardio-pulmonology, hematology, laboratory medicine, endocrinology, gastroenterology, internal medicine, psychiatry, urology, biomedical physics and medical nutrition.
