Download or read book The Role of NIFNE in the Synthesis of FeMo co written by Jon T. Roll and published by . This book was released on 1996 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Iron molybdenum Cofactor of Nitrogenase written by Ronda M. Allen and published by . This book was released on 1995 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Homocitrate in the Biosynthesis of the Iron molybdenum Cofactor of Nitrogenase written by Timothy Randall Hoover and published by . This book was released on 1988 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation at the Millennium written by G.J. Leigh and published by Elsevier. This book was released on 2002-11-22 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The turn of the millennium from the twentieth to the twenty-first century provides an occasion to review our understanding of a biological process, biological nitrogen fixation, that is of prime importance for the continued survival of mankind. This process has provided a basis for maintaining soil fertility since the beginning of organised agriculture, yet its very existence was confirmed only just over a century ago. In the intervening years, an enormous intellectual effort has dispersed much of the mystery surrounding biological nitrogen fixation. Biological fixation is widely exploited in agriculture, as are nitrogen fertilisers prepared for the last hundred years under extreme conditions of temperature and pressure. However, despite all our efforts, the fundamental nature of the reactions involved at the heart of the biological process remain unknown. This book aims to describe what we have learned in the last one hundred years or so about biological nitrogen fixation, about what its chemistry appears to be, and how it is applied in agriculture. This ambitious objective has not been attempted recently. It is aimed at students and those who wish to enter these very challenging areas of research, and who need to learn the state of the art at the turn of the millennium. The authors are all acknowledged world experts in their fields. They have prepared concise, well referenced and authoritative accounts of their subjects. This book provides a unique summary of the current state of knowledge that will be indispensable to all students and researchers, actual and potential, interested in biological nitrogen fixation.
Download or read book Studies on the Role of NifH in Iron molybdenum Cofactor Biosynthesis and Insertion Into Apodinitrogenase written by Priya Rangaraj and published by . This book was released on 1999 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Nitrogen Fixation for the 21st Century written by Claudine Elmerich and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen availability is one of the most critical factors that limits plant productivity. The largest reservoir of nitrogen is the atmosphere, but this gaseous molecular nitrogen only becomes available to plants through the biological nitrogen fixation process, which only prokaryotic cells have developed. The discovery that microbes were providing fixed nitrogen to legumes and the isolation of the first nitrogen-fixing bacteria occured at the end the 19th Century, in Louis Pasteur's time. We are now building on more than 100 years of research in this field and looking towards the 21st Century. The International Nitrogen Fixation Congress series Started more than 20 years ago. The format of this Congress is designed to gather scientists from very diverse origins, backgrounds, interests and scientific approaches and is a forum where fundamental knowledge is discussed alongside applied research. This confluence of perspectives is, we believe, extremely beneficial in raising new ideas, questions and concepts.
Download or read book Isolation and Characterization of Factors Involved in the Synthesis of the Iron molybdenum Cofactor of Nitrogenase written by Timothy David Paustian and published by . This book was released on 1989 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation written by Turlough M. Finan and published by CABI. This book was released on 2002 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the 13th International Congress on Nitrogen Fixation, held in Hamilton, Ontario, Canada, in July 2001. It covers molecular and biochemical aspects, plant genomics, stresses and factors limiting nitrogen fixation, and applied aspects.
Download or read book Catalysts for Nitrogen Fixation written by Barry E. Smith and published by Springer Science & Business Media. This book was released on 2013-03-20 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation provides more than 50% of the total annual input of the essential element nitrogen to world agriculture. Thus, it is of immense agronomic importance and critical to food supplies, particularly in developing countries. This book, with chapters authored by internationally renowned experts, provides a comprehensive and detailed account of the fascinating history of the process - including the surprising discoveries of molybdenum-independent nitrogenases and superoxide-dependent nitrogenase; a review of Man's attempts to emulate the biological process - most successfully with the commercially dominant Haber-Bosch process; and the current state of the understanding art with respect to the enzymes - called nitrogenases - responsible for biological nitrogen fixation. The initial chapters use a historical approach to the biological and industrial processes, followed by an overview of assay methodologies. The next set of chapters focuses on the classical enzyme, the molybdenum nitrogenase, and details its biosynthesis, structure, composition, and mechanism of action as well as detailing both how variants of its two component proteins are constructed by recombinant DNA technology and how computational techniques are being applied. The sophisticated chemical modelling of the metal-containing clusters in the enzyme is reviewed next, followed by a description of the two molybdenum-independent nitrogenases - first, the vanadium-containing enzyme and then the iron-only nitrogenase - together with some thoughts as to why they exist! Then follows an up-to-date treatment of the clearly "non-classical" properties of the superoxide-dependent nitrogenase, which more closely resembles molybdenum-containing hydroxylases and related enzymes, like nitrate reductase, that it does the other nitrogenases. Each chapter contains an extensive list of references. This book is the self-contained first volume of a comprehensive seven-volume series. No other available work provides the up-to-date and in-depth coverage of this series and this volume. This book is intended to serve as an indispensable reference work for all scientists working in this area, including agriculture and the closely related metals-in-biology area; to assist students to enter this challenging area of research; and to provide science administrators easy access to vital relevant information.
Download or read book New Horizons in Nitrogen Fixation written by Rafael Palacios and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to understand a process as complex as nitrogen fixation and to be in a position to manipulate it for the benefit of mankind, researchers are now working at the frontiers of science in many different areas: protein structure and function; catalytic mechanisms; electron transfer processes; regulatory circuits and environmental sensing; metabolic integration; chemical communication between organisms; differentiation; genome structure and function; microbial ecology; plant physiology; plant molecular biology; and agronomy. This volume represents a testimony to the advances in nitrogen fixation research that have been made and the contribution of these efforts to the solution of many other varied scientific problems. Limiting steps for future advances are analyzed and new horizons in nitrogen fixation research are proposed.
Download or read book Plant Pathogenesis and Resistance written by Jeng-Sheng Huang and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each plant-pathogen interaction involves a two-way molecular communication. On one hand, the pathogen perceives signals from the plant, secretes chemical arsenals to establish infection courts, and produces metabolites that disrupt structural integrity, alter cellular function, and circumvent host defenses. On the other hand, the plant senses the signals from the pathogen, reinforces its cell walls, and accumulates phytoalexins and pathogenesis-related proteins in an attempt to defend itself. The production of pathogenicity and virulence factors by the pathogen, the elicitation of defense mechanisms by the plant, and the dynamic interaction of the two are the focal points of this book. The book will be of interest to researchers and advanced undergraduate and graduate students in the areas of plant pathology, plant physiology, and plant biochemistry.
Download or read book Molybdenum Enzymes Cofactors and Model Systems written by Edward I. Stiefel and published by . This book was released on 1993 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on recent advances in the molybdenum enzymes Moco and FeMoco and their model systems. Discusses the recent crystallographic determination of the structure of the molybdenum-iron protein in the nitrogenase enzyme. Highlights the latest results on the molybdenum cofactor, Moco, including the recently determined full organic structure. Includes an overview of molybdenum in biology and the role of molybdoenzymes in the nitrogen, sulfur, and carbon cycles.
Download or read book Elucidating the Roles of Nifb and NifEN in Nitrogenase Femoco Assembly written by Jared Andrew Wiig and published by . This book was released on 2013 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molybdenum (Mo) nitrogenase consists of the iron protein (NifH) and the MoFe protein (NifDK). It catalyzes the reduction of dinitrogen (N2) to ammonia (NH3), playing an essential role in the global nitrogen cycle. The assembly of the nitrogenase iron-molybdenum cofactor (FeMoco or M-cluster) has been described as one of the most complex processes in bioinorganic chemistry. While initial genetic approaches identified the key players in M-cluster assembly, biochemical and structural investigations in recent years further elucidated the roles of these players in this process. The M-cluster assembly process starts with the generation of [Fe2S2] and [Fe4S4] clusters by the concerted action of the scaffold protein, NifU, and the cysteine desulfurase, NifS. The assembled [Fe4S4] clusters are delivered to NifB, where they are transformed in a radical S-adenosyl-L-methionine (SAM)-dependent process into an [Fe8S9C] cluster (L-cluster). This is matured to the [MoFe--S9C-homocitrate] M cluster on the scaffold protein, NifEN, before it is transferred to apo-NifDK. This thesis focuses on elucidating the role of the scaffold protein NifEN, as well as the radical SAM enzyme (NifB) in the M-cluster assembly process. The crystal structure of L-cluster-bound form of NifEN was solved at a resolution of 2.6 A, providing valuable insight into the late stages of M cluster assembly. In addition, a NifEN-B fusion protein was isolated and characterized in order to study the inner workings of NifB. Although genetic studies implicated an essential role of NifB in nitrogenase assembly, this was the first direct biochemical evidence of NifB in assembling [Fe4S4] clusters into L-cluster. Subsequently, 14C-methyl-SAM was utilized in elaborate labeling experiments to definitively identify the interstitial atom of the M-cluster as a carbide. Furthermore, having the ability to isotopically label the center atom of nitrogenase enabled the direct monitoring of this atom during substrate turnover, proving it to be a non exchangeable carbon originating from the S-methyl group of SAM. Subsequent studies may build upon this work to decipher the exact structure/function relationship of the nitrogenase M-cluster. The results of this work may ultimately lead to the synthesis of novel Fe-S cluster species.
Download or read book Nitrogen Fixation written by Hermann Bothe and published by . This book was released on 1988 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure of the Iron molybdenum Cofactor Derived from Properties of Dinitrogenase Containing Homocitrate Analogs written by Mark S. Madden and published by . This book was released on 1991 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification and Characterization of Proteins Involved in the Maturation of Dinitrogenase written by Mary Jane Homer and published by . This book was released on 1995 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
