Connexin Methods and Protocols


Book Description

Direct cell–cell communication is a common property of multicellular organisms that is achieved through membrane channels which are organized in gap junctions. The protein subunits of these intercellular channels, the connexins, form a multigene family that has been investigated in great detail in recent years. It has now become clear that, in different tissues, connexins speak several languages that control specific cellular functions. This progress has been made possible by the availability of new molecular tools and the improvement of basic techniques for the study of membrane channels, as well as by the use of genetic approaches to study protein function in vivo. More important, connexins have gained visibility because mutations in some connexin genes have been found to be linked to human genetic disorders. Connexin Methods and Protocols presents in detail a collection of te- niques currently used to study the cellular and molecular biology of connexins and their physiological properties. The field of gap junctions and connexin research has always been characterized by a multidisciplinary approach c- bining morphology, biochemistry, biophysics, and cellular and molecular biology. This book provides a series of cutting-edge protocols and includes a large spectrum of practical methods that are available to investigate the fu- tion of connexin channels. Connexin Methods and Protocols is divided into three main parts.




Developmental Biology Protocols


Book Description

This three-volume set, consisting of 142 chapters, is intentionally broad in scope, because of the nature of modern developmental biology.




Connexin Hemichannels


Book Description




Neurogenetics


Book Description

The rapid identification and characterization of genes of neurological relevance holds great potential for offering insight into the diagnosis, management, and und- standing of the pathophysiologic mechanisms of neurological diseases. This volume in the Methods in Molecular BiologyTM series was conceived to highlight many of the contemporary methodological approaches utilized for the characterization of neu- logically relevant gene mutations and their protein products. Although an emphasis has been placed upon descriptions of methodologies with a defined clinical utility, it is hoped that Neurogenetics: Methods and Protocols will appeal not only to clinical laboratory diagnosticians, but also to clinicians, and to biomedical researchers with an interest in advances in disease diagnosis and the functional consequences of neu- logically relevant gene mutations. To meet this challenge, more than 60 authors graciously accepted my invitation to contribute to the 32 chapters of this book. Through their collective commitment and diligence, what has emerged is a comprehensive and timely treatise that covers many methodological aspects of mutation detection and screening, including disc- sions on quantitative PCR, trinucleotide repeat detection, sequence-based mutation detection, molecular detection of imprinted genes, fluorescence in situ hybridization (FISH), in vitro protein expression systems, and studies of protein expression and function. I would like to take this opportunity to formally thank my colleagues for their effort and dedication to this work.




Transgenesis Techniques


Book Description

The past decade has witnessed a spectacular explosion in both the devel- ment and use of transgenic technologies. Not only have these been used to aid our fundamental understanding of biologic mechanisms, but they have also faci- tated the development of a range of disease models that are now truly beginning to impact upon our approach to human disease. Some of the most exciting model systems relate to neurodegenerative disease and cancer, where the availability of appropriate models is at last allowing radically new therapies to be developed and tested. This latter point is of particular significance given the current concerns of the wider public over both the use of animal models and the merits of using genetically modified organisms. Arguably, advances of the greatest significance have been made using mammalian systems—driven by the advent of embryonic stem-cell–based strategies and, more recently, by cloning through nuclear transfer. For this reason, this new edition of Transgenesis Techniques focuses much more heavily on manipulation of the mammalian genome, both in the general discussions and in the provision of specific protocols.




Transforming Growth Factor-Beta Protocols


Book Description

Philip H. Howe and a group of well-versed experimentalists present the first major volume a collection of indispensable classic and cutting-edge TGFß assays. Described in great detail to ensure robust and successful results, these readily reproducible techniques range from the growth inhibition assay for TGFß to methods for monitoring its interactions with the mediating proteins. Extensive notes discuss potential pitfalls and provide tips on how to avoid failures, and throughout, emphasis is given to detailing those technical steps critical for experimental success that are often omitted in the primary literature. Concise and highly practical, Transforming Growth Factor-Beta Protocols provides today's molecular and cell biologists-both expert and novice-with time-tested methods for the identification and analysis of the signal transduction pathways by which TGFß induces and modulates physiological behavior.




Protein Structure, Stability, and Folding


Book Description

In Protein Structure, Stability, and Folding, Kenneth P. Murphy and a panel of internationally recognized investigators describe some of the newest experimental and theoretical methods for investigating these critical events and processes. Among the techniques discussed are the many methods for calculating many of protein stability and dynamics from knowledge of the structure, and for performing molecular dynamics simulations of protein unfolding. New experimental approaches presented include the use of co-solvents, novel applications of hydrogen exchange techniques, temperature-jump methods for looking at folding events, and new strategies for mutagenesis experiments. Unique in its powerful combination of theory and practice, Protein Structure, Stability, and Folding offers protein and biophysical chemists the means to gain a more comprehensive understanding of some of this complex area by detailing many of the major techniques in use today.




Capillary Electrophoresis of Nucleic Acids


Book Description

The development of PCR, which enables extremely small amounts of DNA to be amplified, led to the rapid development of a multiplicity of a- lytical procedures that permit use of this new resource for the analysis of genetic variation and for the detection of disease-causing mutations. The advent of capillary electrophoresis (CE), with its power to separate and a- lyze very small amounts of DNA, has also stimulated researchers to develop analytical procedures for the CE format. The advantages of CE in terms of speed and reproducibility of analyses are manifold. Furthermore, the high s- sitivity of detection, and the ability to increase sample throughput with par- lel analysis, has led to the creation of a full range of analysis of DNA molecules, from modified DNA adducts and single-strand oligonucleotides through PCR-amplified DNA fragments and whole chromosomes. Capillary Elect- phoresis of Nucleic Acids focuses on analytical protocols that can be used for detection and analysis of mutations and modification, from precise DNA loci through entire genomes of organisms. Important practical considerations for CE, such as the choice of separation media, electrophoresis conditions, and the influence of buffer additives and dyes on DNA mobility, are discussed in several key chapters and within particular applications.




Mitochondrial DNA


Book Description

Mutations within mitochondrial DNA (mtDNA) and the nuclear genes involved in the maintenance of mitochondrial DNA have been linked to a wide range of human diseases, including several of the most common diseases of aging. In Mitochondrial DNA: Methods and Protocols internationally recognized authorities describe in great detail the methods they have perfected to analyze mtDNA and the proteins involved in its maintenance. The analytical techniques cover the purification of mtDNA from a variety of sources and the analysis of DNA for both deletions, point mutations, and damage, for replication intermediates, and for following the fate of mtDNA outside of the mitochondria. Additional analytical methods are presented for analyzing the proteins and enzymes that maintain mtDNA. Each readily reproducible protocol includes step-by-step instructions, tips on avoiding pitfalls and extending the method to other situation, and introductory material explaining the theory behind the process. Comprehensive and timely, Mitochondrial DNA: Methods and Protocols offers both basic and clinical researchers proven cutting-edge methods for analyzing the role mtDNA plays in the aging process, apoptosis, and possibly some cancers, and for investigating the cause of mitochondrial dysfunction and disease.




DNA Methylation Protocols


Book Description

DNA Methylation Protocols offer a set of readily reproducible protocols of the analysis of DNA methylation and methylases. These powerful methods provide the tools necessary for studying methylation at both the global level and the level of sequence, and include many techniques for identifying genes that might be aberrantly methylated in cancer and aging. Additional methods cover genome-wide analysis of abnormal DNA methylation and the isolation and measurement of demethylases and related proteins.