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Author: Girdhar K. Pandey
Publisher: Springer
ISBN: 3319116118
Category : Science
Languages : en
Pages : 88
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Book Description
G proteins are the key regulators for a wide range of cellular processes in animals and plants. In comparison to animals and yeast, plants have a single Rho-GTPase subfamily called Rho-like GTPases (ROPs). The ROP family of monomeric GTPases has emerged as a versatile and key regulator in plant signal transduction processes. During the past few years’ studies on plant RHO-type (ROP) GTPase have generated new insights into their role in diverse processes ranging from cytoskeletal organization, polar growth, development to stress and hormonal responses. Studies have shown that plants have evolved specific regulators and effector molecules. ROP GTPases possess the ability to interact with these multiple regulator and effector molecules that ultimately determines their signaling specificity. Recently, genome wide studies in plants have shown that the Arabidopsis genome encodes 93, and rice has nearly 85 small GTPase homologs. And we have been able to identify four new homologs in the rice genome. Here, we focus on the complete phylogenetic, domain, structural and expression analysis during stress and various developmental processes of small GTPases in plants. The comparison of gene expression patterns of the individual members of the GTPase family may help to reveal potential plant specific signaling mechanisms and their relevance. Also, we are summarizing the role of currently known ROP GTPases and their interacting proteins with brief description, simultaneously, comparing their expression pattern based on microarray data. Overall, we will be discussing the functional genomic perspective of plant Rho like GTPases and their role in regulating several physiological processes such as stress, hormonal, pollen tube, root hair-growth and other developmental responses.
Author: Girdhar K. Pandey
Publisher: Springer
ISBN: 3319116118
Category : Science
Languages : en
Pages : 88
Get Book Here
Book Description
G proteins are the key regulators for a wide range of cellular processes in animals and plants. In comparison to animals and yeast, plants have a single Rho-GTPase subfamily called Rho-like GTPases (ROPs). The ROP family of monomeric GTPases has emerged as a versatile and key regulator in plant signal transduction processes. During the past few years’ studies on plant RHO-type (ROP) GTPase have generated new insights into their role in diverse processes ranging from cytoskeletal organization, polar growth, development to stress and hormonal responses. Studies have shown that plants have evolved specific regulators and effector molecules. ROP GTPases possess the ability to interact with these multiple regulator and effector molecules that ultimately determines their signaling specificity. Recently, genome wide studies in plants have shown that the Arabidopsis genome encodes 93, and rice has nearly 85 small GTPase homologs. And we have been able to identify four new homologs in the rice genome. Here, we focus on the complete phylogenetic, domain, structural and expression analysis during stress and various developmental processes of small GTPases in plants. The comparison of gene expression patterns of the individual members of the GTPase family may help to reveal potential plant specific signaling mechanisms and their relevance. Also, we are summarizing the role of currently known ROP GTPases and their interacting proteins with brief description, simultaneously, comparing their expression pattern based on microarray data. Overall, we will be discussing the functional genomic perspective of plant Rho like GTPases and their role in regulating several physiological processes such as stress, hormonal, pollen tube, root hair-growth and other developmental responses.
Author: Manfred Schwab
Publisher: Springer Science & Business Media
ISBN: 3540665277
Category : Medical
Languages : en
Pages : 1017
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Book Description
This comprehensive encyclopedic reference provides rapid and focused information about topics of cancer research for the clinical and basic scientist, students and informed laymen. It will be readily accessible, both electronically and in print, such that it will be of value to both the scientific community and the public.
Author: Alan Hall
Publisher: Oxford University Press, USA
ISBN: 9780199637447
Category : Language Arts & Disciplines
Languages : en
Pages : 350
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Book Description
GTPases are molecular switches that are used to control biochemical pathways. This book describes the properties and cellular roles of all the major families of GTPases. All cells use GTPases to regulate the delivery of amino acids to the ribosome during protein synthesis, but eukaryotes, with their complex and compartmentalized environment, have exploited the versatility of GTPases to a much greater extent. In particular, GTPases play a central role in regulating signal transduction pathways activated by extracellular signals and in regulating the trafficking of proteins beetween different organelles. It is not surprising, therefore, that GTPases have become a center of attention for those studying the control of proliferation, differentiation, cell polarity, cell movement, and vesicle and protein trafficking. This book provides a complete guide to this area and should be essential reading for cell and molecular biologists, biochemists and geneticists interested in these contemporary problems.
Author: Marc H. Symons
Publisher: Springer Science & Business Media
ISBN: 9780306479922
Category : Science
Languages : en
Pages : 256
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Book Description
Members of the Rho family of small GTP-binding proteins (GTPases) are key signal transduction proteins that mediate signals initiated by growth factors, cytokines and cell adhesion proteins. Our knowledge about Rho GTPases has rapidly expanded over the past several years and Rho GTPases is the first book to provide a comprehensive overview of the regulation and functions of this important class of proteins. This book includes several chapters dedicated to the review of various classes of proteins that control the localization and activation state of Rho GTPases. Additional chapters discuss the wide range of biological functions that are controlled by Rho GTPases, including the organization of the actin cytoskeleton, cell proliferation and cell motility. Rho GTPases is essential reading for cell and molecular biologists, biochemists and geneticists. The critical roles of Rho family members in cancer and inflammatory diseases makes Rho GTPases also an invaluable guide for clinical investigators and pharmacologists.
Author: Rajesh Ramachandran
Publisher: Humana
ISBN: 9781071606759
Category : Science
Languages : en
Pages : 0
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Book Description
This volume provides methods and protocols on dynamin superfamily GTPases. Chapters are divided into three parts; detailing expression, purification, initial biochemical steps, undescribed analytical techniques, and biophysical and cellular characterization of DSPs in membrane remodeling, fission and fusion. Written in the highly successful Methods in Molecular Biology series format, 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 cutting-edge, Dynamin Superfamily GTPases: Methods and Protocols to ensure successful results in the further study of this vital field.
Author: Edward J. Manser
Publisher: Springer Science & Business Media
ISBN: 1402034628
Category : Science
Languages : en
Pages : 307
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Book Description
Humans contain more than 20 Rho type GTPases. This volume not only presents a detailed phylogenetic analysis of Rho proteins, but also discusses the possible origins of the human members. Such an analysis of human Rho GTPases has not previously been attempted. The book includes an overview of how Rho GTPases become activated which is complemented by an extensive Chapter by Darerca Owen and Helen Mott who unravel the beautiful molecular details given to us by the many structural studies of Rho GTPases. The key areas currently being investigated in relation to these ubiquitous proteins are described for both in vitro and in vivo systems. These are presented in a format that ensures the reader can approach the topic with minimal background knowledge, while ultimately bringing the subject to the level of an expert. Timely and highly authoritative, this volume illuminates newer findings, particularly as they relate to Rho proteins in vertebrate biology.
Author: Kenneth van Golen
Publisher: Springer Science & Business Media
ISBN: 1441911111
Category : Medical
Languages : en
Pages : 219
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Book Description
Channing Der and colleagues provide an encyclopedic overview of the Rho GTPases, providing enough detail to make any reader well-versed in the Rho field. Finally, Sofia Merajver’s laboratory provides an overview, which details the roles of the Rho proteins in cancer progression. She provides us with the history of the study of the Rho GTPases, their regulatory and effector proteins in cancer and gives us a benchmark of where the field is today. The second section of the book details the current knowledge of the Rho regu- tory proteins in cancer progression: aberrant expression and activation of these proteins leads to dysfunctional Rho signaling and a cancer phenotype. Gary Bokoch’s laboratory has provided a detailed overview of the role of Rho guanine dissociation inhibitors (GDIs) in cancer. These molecules are involved in preventing the Rho protein from associating with the inner plasma membrane and exchanging GDP for GTP, and thus becoming active. Next, Tozu Kazasa’s labo- tory has worked on the link between heterotrimeric G proteins and Rho activation via the RGS–RhoGEFs. This aspect of Rho activation is particularly interesting in that heterotrimeric G proteins and their associated G-protein-coupled receptors are attractive and attainable therapeutic targets. Dan Billadeau’s laboratory has worked extensively on the Vav RhoGEFs, which are potent oncogenes in their own right.
Author: Klaus Aktories
Publisher: Springer Science & Business Media
ISBN: 3642769667
Category : Medical
Languages : en
Pages : 154
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Book Description
ADP-ribosylating toxins have been the focus of intensive research for more than 30 years. Researchers from diverse fields of science have taken an interest in these bacterial toxins; they are studied, for example, by microbiologists, biochemists, cell biologists, and pharmacologists. There are two principal reasons for the broad and still growing interest in ADP ribosylating toxins. First, insights into the structure and functions of the toxins might be the key to prevention and treatment of diseases caused by the toxin-producing infectious micro organisms. Second, the ADP-ribosylating toxins provide potent and often unique pharmacological tools for the study of the physiological functions of their target proteins. The latter is especially the case with cholera and pertussis toxins, which both modify the IX-subunits of heterotrimeric G-proteins involved in signal transduction pathways. These toxins have proved invaluable in extending our basic understanding of the regulation of hormone-controlled signal transduction. This volume provides a review and an update of recent studies on the basic properties of bacterial ADP-ribosylating tbxins and/or exoenzymes. Our current knowledge of the cel lular entry mechanisms of ADP-ribosylating toxins is reviewed by MADSHUS and STENMARK. WILSON and COLLIER then deal with recent insights into the enzyme mechanism and active site structure of diphtheria toxin and Pseudomonas aeruginosa exotoxin A, which modify elongation factor 2. Toxins which ADP-ribosylate heterotrimeric G-proteins involved in trans membrane signal transduction are the subject of the next two chapters.
Author: Joan Marsh
Publisher: John Wiley & Sons
ISBN: 0470514469
Category : Science
Languages : en
Pages : 304
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Book Description
Using a multidisciplinary approach, it features contributions and discussions of the latest research from leading scientists working on all aspects of GTPase activity. Covers all known members of the important superfamily of enzymes--the GTPases. Considers numerous key cellular functions and how they are regulated by GTPases. Also describes various regulatory proteins that modulate GTPase activity.
Author: Philippe Fort
Publisher: World Scientific
ISBN: 9813228806
Category : Science
Languages : en
Pages : 213
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Book Description
Rho GTPases control many aspects of cell physiology. This includes polarity, endo/exocytosis, adhesion, motility, transcriptional activation, cell cycle progression or apoptosis. In view of such pleiotropic activities, Rho-controlled signaling has proven to be of medical relevance, especially in tumorigenesis, disease-associated bone remodeling and infectiology.This book is divided into three parts. Part 1 gives an evolutionary perspective of the Rho family, its atypical members, and an overview of how Rho activity is regulated. Part 2 addresses two important aspects of multicellularity controlled by Rho-dependent pathways, namely, cell-cell interactions and mechanotransduction. It also describes how post-translational modifications control Rho activity and how this is exploited by pathogenic bacteria. Part 3 explores several examples of the variety of pathophysiological processes controlled by Rho signaling, and gives a successful example of translational research, from the inhibition of Rho activation to the development of new molecules against osteoporosis.This updated review on the biology of Rho GTPases is an essential read for molecular and cell biologists. It is also an invaluable guide to post-graduate and medical students who wish to deepen their knowledge in cell biology.
