Download or read book Characterizing Bacterial Secretion Systems Using Mass Spectrometry written by Pragya Singh and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gram-negative bacteria have evolved an array of secretion systems for protein transport across their membranes. The ability to secrete a diverse set of proteins to their target of choice provides bacteria with a menacing tool for pathogenesis. This work aims to enhance our understanding of bacterial pathogenesis by characterizing key aspects of bacterial secretion systems using mass spectrometry. Chapter 1 provides a general introduction of protein secretion pathways in Gran-negative bacteria, with a special emphasis on type III and type VI secretion systems. Chapter 2 highlights chemical cross-linking and mass spectrometry (CXMS) as a technique for studying protein-protein interactions in large molecular complexes. Chapter 3 describes a novel pipeline for acquisition and analysis of CXMS data. In Chapter 4, key interactions between the basal components of type III secretion systems (T3SS) are identified, and used to create a model of the core structure of T3SS. In Chapter 5, secretome of T6SS in P. aeruginosa is profiled to identify three novel substrates of the system. Evidence of the involvement of one of these substrates in inter-bacterial interactions is presented.

Download or read book Structural and Functional Characterization of Bacterial Secretion Systems Using Mass Spectrometry written by Pragya Singh and published by . This book was released on 2011 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Use of Mass Spectrometry to Characterize the Metabolic Output of Bacterial Pathogens written by David Junior Gonzalez and published by . This book was released on 2011 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall theme of this thesis is the use of mass spectrometry to answer questions of biological relevance. The thesis begins by informing the reader on the basics of mass spectrometry and associated tools with an introductory chapter. Chapter 2 describes collaborative work performed between three labs at UCSD, the Jack E. Dixon, Victor Nizet and Pieter C. Dorrestein labs. The project was initiated by the use of comparative genomics to discover a widely distribution toxin biosynthetic gene cluster. Molecular and biochemical analysis of a two members of the conserved family, namely Group A Streptococcus and Clostridium Botulinum, demonstrated the organisms indeed contained similar cellular machinery for the biosynthesis of ribosomally encoded peptides putatively containing thiazole and (methyl)-oxazole moieties. Chapter 3 continues characterizing the widely distributed family of toxins specifically characterizing the gene cluster within the bacterium C. Botulinum. The work describes the use of mass spectrometry to obtain structural evidence, verifying the biosynthetic gene cluster indeed produces heterocycles as hypothesized by the genomic studies. Additionally, the work uses biochemical and genetic approaches to characterize a novel [Beta]-hemolytic, cytolytic toxin in two Clostridia species. Chapter 4 introduces the method of imaging mass spectrometry (IMS) of microbial colonies. Although IMS is not a novel technique, very few reports had used the technology to investigate the microbial kingdom. The work within chapter 4 describes an IMS survey performed on a vast number of differential microbes to visualize their associated metabolic output. The goal was to show that IMS is an amenable technique that can be applied to a diverse number of microbes. Chapter 5 goes beyond the proposal set forth in chapter 4, as IMS was used to visualize the interaction between two well characterized model bacterial systems, the probiotic bacterium Bacillus subtilis and the bona fide human pathogen methicillin resistant Staphylococcus aureus (MRSA). Imaging mass spectrometry showed directional release of compounds by the probiotic organism B. subtilis that have antibiotic effects against MRSA giving insight into the potential mode of action for probiotic organisms.

Download or read book Stable Isotope Labeling by Amino Acids in Cell Culture SILAC written by Bettina Warscheid and published by Humana Press. This book was released on 2014-07-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stable Isotope Labeling by Amino Acids in Cell Culture (SILAC): Methods and Protocols provides a synopsis of a large array of different SILAC methods by presenting a set of protocols that have been established by renowned scientists and their working groups. These include methods and protocols for the labeling of various model organisms as well as advanced strategies relying on SILAC, e.g. for the analysis of protein interactions, the mapping of posttranslational modifications or the characterization of subcellular proteomes. 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 key tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Stable Isotope Labeling by Amino Acids in Cell Culture (SILAC): Methods and Protocols will serve students and experienced scientists alike as a valuable reference of how to make use of the SILAC technology for their own research.

Download or read book The Use of Mass Spectrometry Technology MALDI TOF in Clinical Microbiology written by Fernando Cobo and published by Academic Press. This book was released on 2018-08-03 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Use of Mass Spectrometry Technology (MALDI-TOF) in Clinical Microbiology presents the state-of the-art for MALDI-TOF mass spectrometry. It is a key reference defining how MALDI-TOF mass spectrometry is used in clinical settings as a diagnostic tool of microbial identification and characterization that is based on the detection of a mass of molecules. The book provides updated applications of MALDI-TOF techniques in clinical microbiology, presenting the latest information available on a technology that is now used for rapid microbial identification at relatively low cost, thus offering an alternative to conventional laboratory diagnosis and proteomic identification systems. Although the main use of the technology has, until now, been identification or typing of bacteria from a positive culture, applications in the field of virology, mycology, microbacteriology and resistances are opening up new opportunities. Presents updated applications of MALDI-TOF techniques in clinical microbiology Describes the use of mass spectrometry in the lab, the principles of the technology, preparation of samples, device calibration and maintenance, treatment of microorganisms, and quality control Presents key information for researchers, including possible uses of the technology, differences between devices, how to interpret results, and future applications Covers the topic in a systematic and comprehensive manner that is useful to both clinicians and researchers

Download or read book Bacterial Secretion Systems written by Laure Journet and published by Springer Nature. This book was released on 2023-11-06 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition details new and updated protocols that cover techniques used to study secretion systems. Chapters focus on identifying and localizing the different subunits, defining interactions within subunits, monitoring conformational changes, purifying and imaging of large complexes, defining the assembly pathway by fluorescence microscopy and the role of energy during assembly and/or secretion, identifying secreted effectors as well as using reporters to follow effector transport. 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 key tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Bacterial Secretion Systems: Methods and Protocols- Second Edition aims to be a useful and practical guide to new researchers and experts looking to expand their knowledge.

Download or read book MALDI TOF and Tandem MS for Clinical Microbiology written by Haroun N. Shah and published by John Wiley & Sons. This book was released on 2017-03-31 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the triumph of MALDI-TOF mass spectrometry over the past decade and provides insight into new and expanding technologies through a comprehensive range of short chapters that enable the reader to gauge their current status and how they may progress over the next decade. This book serves as a platform to consolidate current strengths of the technology and highlight new frontiers in tandem MS/MS that are likely to eventually supersede MALDI-TOF MS. Chapters discuss: Challenges of Identifying Mycobacterium to the Species level Identification of Bacteroides and Other Clinically Relevant Anaerobes Identification of Species in Mixed Microbial Populations Detection of Resistance Mechanisms Proteomics as a biomarker discovery and validation platform Determination of Antimicrobial Resistance using Tandem Mass Spectrometry

Download or read book Identification and Characterization of Contrasting Genotypes Cultivars to Discover Novel Players in Crop Responses to Abiotic Biotic Stresses written by Raul Antonio Sperotto and published by Frontiers Media SA. This book was released on 2022-02-24 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mass Spectrometry for Microbial Proteomics written by Haroun N. Shah and published by John Wiley & Sons. This book was released on 2010-10-28 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: New advances in proteomics, driven largely by developments in mass spectrometry, continue to reveal the complexity and diversity of pathogenic mechanisms among microbes that underpin infectious diseases. Therefore a new era in medical microbiology is demanding a rapid transition from current procedures to high throughput analytical systems for the diagnosis of microbial pathogens. This book covers the broad microbiological applications of proteomics and mass spectrometry. It is divided into six sections that follow the general progression in which most microbiology laboratories are approaching the subject –Transition, Tools, Preparation, Profiling by Patterns, Target Proteins, and Data Analysis.

Download or read book Applications of Mass Spectrometry in Microbiology written by Plamen Demirev and published by Springer. This book was released on 2016-01-12 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last quarter century, advances in mass spectrometry (MS) have been at the forefront of efforts to map complex biological systems including the human metabolome, proteome, and microbiome. All of these developments have allowed MS to become a well-established molecular level technology for microorganism characterization. MS has demonstrated its considerable advantage as a rapid, accurate, and cost-effective method for microorganism identification, compared to conventional phenotypic techniques. In the last several years, applications of MS for microorganism characterization in research, clinical microbiology, counter-bioterrorism, food safety, and environmental monitoring have been documented in thousands of publications. Regulatory bodies in Europe, the US, and elsewhere have approved MS-based assays for infectious disease diagnostics. As of mid-2015, more than 3300 commercial MS systems for microorganism identification have been deployed worldwide in hospitals and clinical labs. While previous work has covered broader approaches in using MS to characterize microorganisms at the species level or above, this book focuses on strain-level and subtyping applications. In twelve individual chapters, innovators, leaders and practitioners in the field from around the world have contributed to a comprehensive overview of current and next-generation approaches for MS-based microbial characterization at the subspecies and strain levels. Chapters include up-to-date reference lists as well as web-links to databases, recommended software, and other useful tools. The emergence of new, antibiotic-resistant strains of human or animal pathogens is of extraordinary concern not only to the scientific and medical communities, but to the general public as well. Developments of novel MS-based assays for rapid identification of strains of antibiotic-resistant microorganisms are reviewed in the book as well. Microbiologists, bioanalytical scientists, infectious disease specialists, clinical laboratory and public health practitioners as well as researchers in universities, hospitals, government labs, and the pharmaceutical and biotechnology industries will find this book to be a timely and valuable resource.

Download or read book The Mycobacterial Cell Envelope written by Mamadou Daffé and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains the unique characteristics that cause this large group of bacteria responsible for tuberculosis and leprosy to function differently; serves as a valuable reference for those working in the areas of biochemistry, genetics, genomics, and immunology.

Download or read book Protein Secretion in Bacteria written by Maria Sandkvist and published by John Wiley & Sons. This book was released on 2020-07-02 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein transport into and across membranes is a fundamental process in bacteria that touches upon and unites many areas of microbiology, including bacterial cell physiology, adhesion and motility, nutrient scavenging, intrabacterial signaling and social behavior, toxin deployment, interbacterial antagonism and collaboration, host invasion and disruption, and immune evasion. A broad repertoire of mechanisms and macromolecular machines are required to deliver protein substrates across bacterial cell membranes for intended effects. Some machines are common to most, if not all bacteria, whereas others are specific to Gram-negative or Gram-positive species or species with unique cell envelope properties such as members of Actinobacteria and Spirochetes. Protein Secretion in Bacteria, authored and edited by an international team of experts, draws together the many distinct functions and mechanisms involved in protein translocation in one concise tome. This comprehensive book presents updated information on all aspects of bacterial protein secretion encompassing: Individual secretory systems–Sec, Tat, and T1SS through the newly discovered T9SS Mechanisms, structures, and functions of bacterial secretion systems Lipoprotein sorting pathways, outer membrane vesicles, and the sortase system Structures and roles of surface organelles, including flagella, pili, and curli Emerging technologies and translational implications Protein Secretion in Bacteria serves as both an introductory guide for students and postdocs and a ready reference for seasoned researchers whose work touches on protein export and secretion. This volume synthesizes the diversity of mechanisms of bacterial secretion across the microbial world into a digestible resource to stimulate new research, inspire continued identification and characterization of novel systems, and bring about new ways to manipulate these systems for biotechnological, preventative, and therapeutic applications.

Download or read book Advancements of Mass Spectrometry in Biomedical Research written by Alisa G. Woods and published by Springer. This book was released on 2019-07-25 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores the use of mass spectrometry for biomedical applications. Chapters focus on specific therapeutic areas such as oncology, infectious disease, and psychiatry. Additional chapters focus on methodology, technologies and instrumentation, as well as on analysis of protein-protein interactions, protein quantitation, and protein post-translational modifications. Various omics fields such as proteomics, metabolomics, glycomics, lipidomics, and adductomics are also covered. Applications of mass spectrometry in biotechnological and pharmaceutical industry are also discussed. This volume provides readers with a comprehensive and informative manual that will allow them to appreciate mass spectrometry and proteomic research, but also to initiate and improve their own work. This book acts as a technical guide as well as a conceptual guide to the newest information in this exciting field.

Download or read book Characterization of rare and recently first described human pathogenic bacteria written by Percy Schröttner and published by Frontiers Media SA. This book was released on 2023-07-24 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of major traits and identification of functional genes for potato written by Botao Song and published by Frontiers Media SA. This book was released on 2023-06-27 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bacterial Type III Protein Secretion Systems written by Samuel Wagner and published by Springer Nature. This book was released on 2020-08-14 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most exciting developments in the field of bacterial pathogenesis in recent years is the discovery that many pathogens utilize complex nanomachines to deliver bacterially encoded effector proteins into eukaryotic and prokaryotic target cells to modulate a variety of cellular functions for the pathogen’s benefit. These protein-delivery machines include the type III secretion system (T3SS), which is widespread in nature and encoded not only by bacteria pathogenic to vertebrates or plants, but also by bacteria that are symbiotic to plants or insects. Because they are essential virulence factors for many important human pathogens, these systems are emerging as a prime target for the development of new-generation, anti-infective drugs. This book reviews our current understanding of these intriguing injection machines as well as of the closely related T3SS that serves in flagella assembly. Individual chapters focus on regulation, assembly, structure, and function of the type III secretion machine and on the evolution of the secreted effector proteins. Given its scope, this book will appeal to a broad readership, including researchers and teachers in the fields of infectious diseases, host pathogen interactions, plant and animal pathogenesis, and symbiosis.

Download or read book Protein Secretion Pathways in Bacteria written by B. Oudega and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: For bacteria ..."the times are achanging"... The genomes of over 60 different bacteria have now been sequenced, and we know a lot about the important research organism Escherichia coli, the important industrial organism Bacillus subtilis, and about important plant and human pathogens. It will not take long before we know all the gene products and their functions of a few of these bacteria. Some of us already begin to think about a digital model E. coli or Bacillus cell. For that end we need to know all the physiological activities and metabolic routes of the cell. But in addition we like to know how things work at the molecular level and how protein and membranes as well as other (macromolecular) structures work together to carry out specific cell functions. Protein Secretion Pathways in Bacteria describes all the known folding and targeting routes of inner and outer membrane proteins as well as of proteins that are secreted by several specific export routes. The book gives detailed molecular information about the structures that are important for the different mechanisms involved. This is a valuable contribution to the understanding of how rather simple and yet complex bacterial cells work.