Protein Targeting to Mitochondria

Protein Targeting to Mitochondria PDF Author: F.U. Hartl
Publisher: Elsevier
ISBN: 0080877001
Category : Science
Languages : en
Pages : 377

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Book Description
A large number of newly-synthesized polypeptides must cross one or several intracellular membranes to reach their functional locations in the eukaryotic cell. The mechanisms of protein trafficking, in particular the post-translational targeting and membrane translocation of proteins, are of fundamental biological importance and are the focus of intensive research world-wide. For more than 15 years, mitochondria have served as the paradigm organelle system to study these processes. Although key questions, such as how precisely proteins cross a membrane, still remain to be answered, exciting progress has been made in understanding the basic pathways of protein import into mitochondria and the components involved. In addition to a fascinating richness and complexity in detail, the analysis of mitochondrial protein import has revealed mechanistic principles of general significance: Major discoveries include the demonstration of the requirement of an unfolded state for translocation and of the essential role of molecular chaperones on both sides of the membranes in maintaining a translocation-competent conformation and in protein folding after import. It is becoming clear how a polypeptide chain is "reeled" across the membrane in an ATP-dependent process by the functional cooperation of membrane proteins, presumably constituting part of a transmembrane channel, with peripheral components at the trans-side of the membrane.In this volume, eminent experts in the field take the time to review the central aspects of mitochondrial biogenesis. The logical order of the 16 chapters is determined by the sequence of steps during protein import, starting with the events taking place in the cytosol, followed by the recognition of targeting signals, the translocation of precursor proteins across the outer and inner membranes, their proteolytic processing and intramitochondrial sorting, and finally their folding and oligomeric assembly. In addition, the mechanisms involved in the export of mitochondrially encoded proteins as well as recent advances in understanding the division and inheritance of mitochondria will be discussed.

Protein Targeting to Mitochondria

Protein Targeting to Mitochondria PDF Author: F.U. Hartl
Publisher: Elsevier
ISBN: 0080877001
Category : Science
Languages : en
Pages : 377

Get Book Here

Book Description
A large number of newly-synthesized polypeptides must cross one or several intracellular membranes to reach their functional locations in the eukaryotic cell. The mechanisms of protein trafficking, in particular the post-translational targeting and membrane translocation of proteins, are of fundamental biological importance and are the focus of intensive research world-wide. For more than 15 years, mitochondria have served as the paradigm organelle system to study these processes. Although key questions, such as how precisely proteins cross a membrane, still remain to be answered, exciting progress has been made in understanding the basic pathways of protein import into mitochondria and the components involved. In addition to a fascinating richness and complexity in detail, the analysis of mitochondrial protein import has revealed mechanistic principles of general significance: Major discoveries include the demonstration of the requirement of an unfolded state for translocation and of the essential role of molecular chaperones on both sides of the membranes in maintaining a translocation-competent conformation and in protein folding after import. It is becoming clear how a polypeptide chain is "reeled" across the membrane in an ATP-dependent process by the functional cooperation of membrane proteins, presumably constituting part of a transmembrane channel, with peripheral components at the trans-side of the membrane.In this volume, eminent experts in the field take the time to review the central aspects of mitochondrial biogenesis. The logical order of the 16 chapters is determined by the sequence of steps during protein import, starting with the events taking place in the cytosol, followed by the recognition of targeting signals, the translocation of precursor proteins across the outer and inner membranes, their proteolytic processing and intramitochondrial sorting, and finally their folding and oligomeric assembly. In addition, the mechanisms involved in the export of mitochondrially encoded proteins as well as recent advances in understanding the division and inheritance of mitochondria will be discussed.

Protein Targeting, Transport, and Translocation

Protein Targeting, Transport, and Translocation PDF Author: Ross Dalbey
Publisher: Elsevier
ISBN: 0080480500
Category : Science
Languages : en
Pages : 441

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Book Description
Protein Targeting, Transport, and Translocation presents an in-depth overview on the topic of protein synthesis, covering all areas of protein science, including protein targeting, secretion, folding, assembly, structure, localization, quality control, degradation, and antigen presentation. Chapters also include sections on the history of the field as well as summary panels for quick reference. Numerous color illustrations complement the presentation of material. This book is an essential reference for anyone in biochemistry and protein science, as well as an excellent textbook for advanced students in these and related fields. Basic principles and techniques Targeting adn sorting sequences Protein export in bacteria Membrane protein integration into ER and bacterial membranes Protein translocation across the ER Disulfide bond formation in prokaryotes and eukaryotes Quality control in the export pathway Import of proteins into organelles The secretory pathway Vesicular transport Spectacular color throughout

Molecular Biology of The Cell

Molecular Biology of The Cell PDF Author: Bruce Alberts
Publisher:
ISBN: 9780815332183
Category : Cytology
Languages : en
Pages : 0

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Book Description


Mitochondrial Protein Targeting Signals

Mitochondrial Protein Targeting Signals PDF Author: Michelle Elisabeth Walker
Publisher:
ISBN:
Category : Mitochondria
Languages : en
Pages : 0

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Book Description


Mitochondrial Protein Targeting Signals

Mitochondrial Protein Targeting Signals PDF Author: Michelle Elisabeth Walker
Publisher:
ISBN:
Category : Mitochondria
Languages : en
Pages :

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Plant Mitochondria

Plant Mitochondria PDF Author: James Whelan
Publisher: Humana
ISBN: 9781493926381
Category : Science
Languages : en
Pages : 0

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Book Description
The chapters compiled in this detailed collection outline a number of methods used to study plant mitochondria today, starting from the isolation of mitochondria to detailed analyses of RNA, protein and enzymatic activities. Given that the ability to uncover mitochondria’s unique features is underpinned by current methodology, this book explores the subject from morphology to detailed molecular mechanisms. 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. Practical and authoritative, Plant Mitochondria: Methods and Protocols serves as a vital resource to beginners in the field as well as to expert researchers who find themselves being pulled into the field of mitochondrial research as it links to so many important aspects of plant cell biology.

The Chlamydomonas Sourcebook: Introduction to Chlamydomonas and Its Laboratory Use

The Chlamydomonas Sourcebook: Introduction to Chlamydomonas and Its Laboratory Use PDF Author: Elizabeth H. Harris
Publisher: Academic Press
ISBN: 0080919553
Category : Science
Languages : en
Pages : 483

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Book Description
Dr. Harris has played a major role in the development of this organism as a model system. Her previous version of the Chlamydomonas Sourcebook which published in 1989, has been a classic in the field and is considered required reading for anyone working with this organism. This latest edition has been expanded to include three volumes providing molecular techniques, analysis of the recently sequenced genome, and reviews of the current status of the diverse fields in which Chlamydomonas is used as a model organism. Methods for Chlamydomonas research and best practices for applications in research, including methods for culture, preservation of cultures, preparation of media, lists of inhibitors and other additives to culture media, are included. Additions to this volume also include help with common laboratory problems such as contamination, student demonstrations, and properties of particular strains and mutants. This volume is part of a 3-Volume Set (ISBN: 978-0-12-370873-1) and is also sold individually. Expanded revision of gold standard reference Includes latest advances in research, including completion of the genome Provides broad perspective with studies in cell and molecular biology, genetics, plant physiology and related fields Available as part of a 3-Volume Set or sold individually

The Enzymes

The Enzymes PDF Author:
Publisher: Elsevier
ISBN: 0443136920
Category : Science
Languages : en
Pages : 318

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Book Description
The Enzymes, Volume 54 highlights new advances in enzymes, with new chapters on a variety of topics, including the History of The Enzymes, Impact of The Enzymes in chronicling biochemical processes and pathways, Metabolism and Catalysis, Mitochondrial ATP synthase, The respiratory chain, A century of mitochondrial research, Five decades of metalloenzymology, Mechanisms of catalysis, Mitochondrial fatty acid synthesis and associated processes, Signaling, MAPK cascades: Origins, mechanisms and current status, Sphingolipids: From structural components to signaling hubs, Protein Homeostasis and Hydrolysis, Mitochondrial AAA+ proteases, Hsp70 and JDP proteins: structure-function perspective on molecular chaperone activity. Other sections cover DNA Replication and Repair, Structure-function studies of DNA replication proteins, and Helicases required for nucleotide excision repair. Provides the authority and expertise of leading contributors from an international board of authors Updated release includes the latest information on enzymes

Targeting Signals in Protein Trafficking and Transport

Targeting Signals in Protein Trafficking and Transport PDF Author: Markus Kunze
Publisher: Frontiers Media SA
ISBN: 2832541720
Category : Science
Languages : en
Pages : 233

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Book Description


Clinical Bioenergetics

Clinical Bioenergetics PDF Author: Sergej M. Ostojic
Publisher: Academic Press
ISBN: 0128227729
Category : Science
Languages : en
Pages : 720

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Book Description
Clinical Bioenergetics: From Pathophysiology to Clinical Translation provides recent developments surrounding the etiology and pathophysiology of inherited and acquired energy-delated disorders. Across 40 chapters, world leaders in bioenergetics and mitochondrial medicine discuss novel methodologies designed to identify deficiencies in cellular bioenergetics, as well as the safety and efficacy of emerging management strategies to address poor cellular bioenergetics. Topics discussed include the omics landscape of impaired mitochondrial bioenergetics, hormones, tissue bioenergetics and metabolism in humans. Disease-specific case studies, modes of analysis in clinical bioenergetics, and therapeutic opportunities for impaired bioenergetics, addressing both known treatment pathways and future directions for research, are discussed in-depth. Diseases and Disorders examined include brain injury, chronic fatigue syndrome, psychiatric disorders, pulmonary fibrosis, neurodegenerative disorders, heart failure, chronic kidney disease, obesity, and insulin resistance, among others. Provides a thorough discussion of foundational aspects of bioenergetics and disease, modes of analysis, and treatments for impaired bioenergetics Discusses the role of bioenergetics and treatment pathways in brain injury, chronic fatigue syndrome, psychiatric disorders, pulmonary fibrosis, neurodegenerative disorders, heart failure, chronic kidney disease, obesity, and insulin resistance, among other diseases and disorders Features chapter contributions from international leaders in translational bioenergetics research and clinical practice