Pin the Protein on the Membrane

Pin the Protein on the Membrane PDF Author: Kayla Sapp
Publisher:
ISBN:
Category : Langevin equations
Languages : en
Pages : 96

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Book Description
The structure of the membrane gives rise to important biological phenomena. In this dissertation we focus on the shape of the membrane and its interactions through two different coupling schemes to membrane bound proteins. We develop a model based on the continuum description of the membrane that is used to investigate height-coupled and curvature-coupled membrane-protein systems. For these systems we use coupled Langevin equations to model the dynamics for the Fourier modes of the membrane and protein position in the xy-plane. We investigate similarities and differences in these two coupling schemes in how they alter membrane fluctuations, protein-protein interactions, and lateral protein diffusion. We further expand on previous dynamic membrane-protein models by deriving from the Fokker-Planck formalism a consistent Langevin equations that accurately models the dynamics of systems with protein diffusing along the membrane surface. We investigate how the model differs from previous in the discussion of later protein diffusion.

Pin the Protein on the Membrane

Pin the Protein on the Membrane PDF Author: Kayla Sapp
Publisher:
ISBN:
Category : Langevin equations
Languages : en
Pages : 96

Get Book Here

Book Description
The structure of the membrane gives rise to important biological phenomena. In this dissertation we focus on the shape of the membrane and its interactions through two different coupling schemes to membrane bound proteins. We develop a model based on the continuum description of the membrane that is used to investigate height-coupled and curvature-coupled membrane-protein systems. For these systems we use coupled Langevin equations to model the dynamics for the Fourier modes of the membrane and protein position in the xy-plane. We investigate similarities and differences in these two coupling schemes in how they alter membrane fluctuations, protein-protein interactions, and lateral protein diffusion. We further expand on previous dynamic membrane-protein models by deriving from the Fokker-Planck formalism a consistent Langevin equations that accurately models the dynamics of systems with protein diffusing along the membrane surface. We investigate how the model differs from previous in the discussion of later protein diffusion.

Hormone Metabolism and Signaling in Plants

Hormone Metabolism and Signaling in Plants PDF Author: Jiayang Li
Publisher: Academic Press
ISBN: 0128115637
Category : Science
Languages : en
Pages : 618

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Book Description
Plant Hormones: Biosynthesis and Mechanisms of Action is based on research funded by the Chinese government’s National Natural Science Foundation of China (NSFC). This book brings a fresh understanding of hormone biology, particularly molecular mechanisms driving plant hormone actions. With growing understanding of hormone biology comes new outlooks on how mankind values and utilizes the built-in potential of plants for improvement of crops in an environmentally friendly and sustainable manner. This book is a comprehensive description of all major plant hormones: how they are synthesized and catabolized; how they are perceived by plant cells; how they trigger signal transduction; how they regulate gene expression; how they regulate plant growth, development and defense responses; and how we measure plant hormones. This is an exciting time for researchers interested in plant hormones. Plants rely on a diverse set of small molecule hormones to regulate every aspect of their biological processes including development, growth, and adaptation. Since the discovery of the first plant hormone auxin, hormones have always been the frontiers of plant biology. Although the physiological functions of most plant hormones have been studied for decades, the last 15 to 20 years have seen a dramatic progress in our understanding of the molecular mechanisms of hormone actions. The publication of the whole genome sequences of the model systems of Arabidopsis and rice, together with the advent of multidisciplinary approaches has opened the door to successful experimentation on plant hormone actions. Offers a comprehensive description of all major plant hormones including the recently discovered strigolactones and several peptide hormones Contains a chapter describing how plant hormones regulate stem cells Offers a fresh understanding of hormone biology, particularly molecular mechanisms driving plant hormone actions Discusses the built-in potential of plants for improvement of crops in an environmentally friendly and sustainable manner

The Evolution of Plant Physiology

The Evolution of Plant Physiology PDF Author: Alan R. Hemsley
Publisher: Elsevier
ISBN: 0080472729
Category : Science
Languages : en
Pages : 510

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Book Description
Coupled with biomechanical data, organic geochemistry and cladistic analyses utilizing abundant genetic data, scientific studies are revealing new facets of how plants have evolved over time. This collection of papers examines these early stages of plant physiology evolution by describing the initial physiological adaptations necessary for survival as upright structures in a dry, terrestrial environment. The Evolution of Plant Physiology also encompasses physiology in its broadest sense to include biochemistry, histology, mechanics, development, growth, reproduction and with an emphasis on the interplay between physiology, development and plant evolution. Contributions from leading neo- and palaeo-botanists from the Linnean Society Focus on how evolution shaped photosynthesis, respiration, reproduction and metabolism. Coverage of the effects of specific evolutionary forces -- variations in water and nutrient availability, grazing pressure, and other environmental variables

Polarity in Plants

Polarity in Plants PDF Author: K. Lindsey
Publisher: John Wiley & Sons
ISBN: 9780849323447
Category : Science
Languages : en
Pages : 368

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Book Description
The establishment of polarity is a fundamental feature in eukaryotic development. Polarity in Plants provides an account of current research into the mechanisms by which polarity is generated at the level of the cell, organ and organism in plants, drawing especially on recent work with model organisms. The emphasis is on the use of the techniques of molecular genetics to dissect molecular mechanisms. This is the first volume to bring together the diverse aspects of polarity in plant development.

Endocytosis in Plants

Endocytosis in Plants PDF Author: Jozef Šamaj
Publisher: Springer Science & Business Media
ISBN: 3642324622
Category : Science
Languages : en
Pages : 337

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Book Description
Endocytosis is a fundamental cellular process by means of which cells internalize extracellular and plasma membrane cargos for recycling or degradation. It is important for the establishment and maintenance of cell polarity, subcellular signaling and uptake of nutrients into specialized cells, but also for plant cell interactions with pathogenic and symbiotic microbes. Endocytosis starts by vesicle formation at the plasma membrane and progresses through early and late endosomal compartments. In these endosomes cargo is sorted and it is either recycled back to the plasma membrane, or degraded in the lytic vacuole. This book presents an overview of our current knowledge of endocytosis in plants with a main focus on the key molecules undergoing and regulating endocytosis. It also provides up to date methodological approaches as well as principles of protein, structural lipid, sugar and microbe internalization in plant cells. The individual chapters describe clathrin-mediated and fluid-phase endocytosis, as well as flotillin-mediated endocytosis and internalization of microbes. The book was written for a broad spectrum of readers including students, teachers and researchers.

Plant Endocytosis

Plant Endocytosis PDF Author: Jozef Šamaj
Publisher: Springer
ISBN: 9783642425356
Category : Science
Languages : en
Pages : 0

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Book Description
Endocytosis is a fundamental biological process, which is conserved among all eukaryotes. It is essential not only for many physiological and signalling processes but also for interactions between eukaryotic cells and pathogens or symbionts. This book covers all aspects of endocytosis in both lower and higher plants, including basic types of endocytosis, endocytic compartments, and molecules involved in endocytic internalization and recycling in diverse plant cell types. It provides a comparison with endocytosis in animals and yeast and discusses future prospects in this new and rapidly evolving plant research field. Readers will find an overview of the state-of-the-art methods and techniques applied in plant endocytosis research.

Protein, Lipid and Membrane Traffic

Protein, Lipid and Membrane Traffic PDF Author: North Atlantic Treaty Organization. Scientific Affairs Division
Publisher: IOS Press
ISBN: 9781586030087
Category : Biological transport
Languages : en
Pages : 290

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Book Description
This text concentrates on the following specific topics: the dynamic character of lipids and proteins in biological membranes; the existence of specific domains in membranes including their visualisation; the molecular mechanisms of intracellular transport of membrane constituents and the involvement of lipid-protein interactions in these processes; protein assembly; structure and folding and transport through membranes; and the intracellular sorting and targeting of individual membrane components as well as different organelles."

The Power of Movement in Plants

The Power of Movement in Plants PDF Author: Charles Robert Darwin
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 610

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Book Description


Plant ABC Transporters

Plant ABC Transporters PDF Author: Markus Geisler
Publisher: Springer
ISBN: 3319065114
Category : Science
Languages : en
Pages : 333

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Book Description
This book is devoted to the fascinating superfamily of plant ATP-binding cassette (ABC) transporters and their variety of transported substrates. It highlights their exciting biological functions, covering aspects ranging from cellular detoxification, through development, to symbiosis and defense. Moreover, it also includes a number of chapters that center on ABC transporters from non-Arabidopsis species. ABC proteins are ubiquitous, membrane-intrinsic transporters that catalyze the primary (ATP-dependent) movement of their substrates through biological membranes. Initially identified as an essential aspect of a vacuolar detoxification process, genetic work in the last decade has revealed an unexpectedly diverse variety of ABC transporter substrates, which include not only xenobiotic conjugates, but also heavy metals, lipids, terpenoids, lignols, alkaloids and organic acids. The discovery that members of the ABCB and ABCG family are involved in the movement of phytohormones has further sparked their exploration and provided a new understanding of the whole family. Accordingly, the trafficking, regulation and structure-function of ABCB-type auxin transporters are especially emphasized in this book.

The Next Generation in Membrane Protein Structure Determination

The Next Generation in Membrane Protein Structure Determination PDF Author: Isabel Moraes
Publisher: Springer
ISBN: 3319350722
Category : Science
Languages : en
Pages : 188

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Book Description
This book reviews current techniques used in membrane protein structural biology, with a strong focus on practical issues. The study of membrane protein structures not only provides a basic understanding of life at the molecular level but also helps in the rational and targeted design of new drugs with reduced side effects. Today, about 60% of the commercially available drugs target membrane proteins and it is estimated that nearly 30% of proteins encoded in the human genome are membrane proteins. In recent years much effort has been put towards innovative developments to overcome the numerous obstacles associated with the structure determination of membrane proteins. This book reviews a variety of recent techniques that are essential to any modern researcher in the field of membrane protein structural biology. The topics that are discussed are not commonly found in textbooks. The scope of this book includes: Expression screening using fluorescent proteins The use of detergents in membrane protein research The use of NMR Synchrotron developments in membrane protein structural biology Visualisation and X-ray data collection of microcrystals X-ray diffraction data analysis from multiple crystals Serial millisecond crystallography Serial femtosecond crystallography Membrane protein structures in drug discovery The information provided in this book should be of interest to anyone working in the area of structural biology. Students will find carefully prepared overviews of basic ideas and advanced protein scientists will find the level of detail required to apply the material directly to their day to day work. Chapters 4, 5, 6, 8 and 9 of this book are published open access under a CC BY 4.0 license at link.springer.com.