Characterization and Functional Analysis of Drosophila Melanogaster Myosin Chaperone UNC-45 (DUNC-45) Gene PDF Download
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Author: Qin Yu
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Author: Qin Yu
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Author: Becky Marlene Miller
Publisher:
ISBN:
Category : Drosophila melanogaster
Languages : en
Pages : 336
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Book Description
Drosophila melanogaster has a single myosin alkali light chain gene which encodes for two protein isoforms by developmentally regulated alternative splicing of the primary transcript. All six of the exons in the gene are present in the mRNA of larval muscles and the tubular and abdominal muscles of the adults. A novel mRNA species present exclusively in the adult and pupal Indirect Flight Muscle (IFM) lacks the fifth exon, thus encoding a MLC-ALK isoform with a variant carboxyl terminus. All introns of the transcript contain the established concensus splicing signals with the exception of intron 4. In this intron, a non-canonical polypurine stretch replaces the concensus polypyrimidine, rendering it a likely regulatory site. Because the transcripts are colinear with the gene throughout development the alternative splicing pattern in the IFM appears to be regulated at the level of splice site choice. The goal of this research is to identify the cis-regulatory sequences that control the choice between alternative larval and IFM-specific splicing pathways. I have developed a transient expression system for Drosophila Schneider 2 cultured cells utilizing the Drosophila metallothionein promoter to direct transcription of transfected MLC-ALK minigenes. This analysis demonstrated that the larval-specific splicing pathway represents the default splicing of the MLC-ALK transcripts. Analysis of mutant minigene transcripts revealed that splicing in the IFM-specific pathway is not the result of blockage or incapacitation of either splice acceptor or/and donor sequences flanking exon 5. The structures of the mutant mRNAs suggest that utilization of the IFM-specific pathway requires trans-acting factors which are absent in the cultured cells. Furthermore, analysis of mutant and hybrid minigene transcripts identified a unique cis-regulatory sequence proximal to the splice donor of intron 4, required for efficient utilization of the larval-specific splicing pathway. Mutations in intron 4 inhibit removal of the downstream intron 5 suggesting that an ordered pathway of intron removal is employed for larval-specific splicing. On the basis of these results a model of the mechanism of tissue and temporal regulation of alternative splicing of the MLC-ALK transcripts is presented.
Author:
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ISBN:
Category : Cytology
Languages : en
Pages : 660
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Author: Adrienne L. Edkins
Publisher: Springer Nature
ISBN: 3031147405
Category : Science
Languages : en
Pages : 436
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Co-chaperones are important mediators of the outcome of chaperone assisted protein homeostasis, which is the dynamic integration of the processes of protein folding, degradation and translocation to ensure that cellular function is finely tuned in space and time. This third edition of the book The Networking of Chaperones by Co-chaperones describes how the function of the major molecular chaperones is regulated by co-chaperones, a diverse cohort of non-client proteins. Since the second edition was released, not only has knowledge deepened on how co-chaperones act as nodes to network and functionalise chaperones, but an understanding of their broader biological function has started to emerge. The third edition provides new and updated chapters highlighting recent developments and emerging themes on co-chaperones, such as their extracellular functions, their role in human disease and their status as putative drug targets. The book is a useful resource for both newcomers and established researchers in the field of cell stress and chaperones, as well as those interested in cross-cutting disciplines such as cellular networks and systems biology.
Author: Jeffrey S. Smith
Publisher: Humana
ISBN: 9781493951826
Category : Science
Languages : en
Pages : 0
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Book Description
Yeast Genetics: Methods and Protocols is a collection of methods to best study and manipulate Saccharomyces cerevisiae, a truly genetic powerhouse. The simple nature of a single cell eukaryotic organism, the relative ease of manipulating its genome and the ability to interchangeably exist in both haploid and diploid states have always made it an attractive model organism. Genes can be deleted, mutated, engineered and tagged at will. Saccharomyces cerevisiae has played a major role in the elucidation of multiple conserved cellular processes including MAP kinase signaling, splicing, transcription and many others. Written in the 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 protocols and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Yeast Genetics: Methods and Protocols will provide a balanced blend of classic and more modern genetic methods relevant to a wide range of research areas and should be widely used as a reference in yeast labs.
Author:
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ISBN:
Category :
Languages : en
Pages :
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Author: Weibo Cai
Publisher: BoD – Books on Demand
ISBN: 9535103970
Category : Science
Languages : en
Pages : 488
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Proteins are indispensable players in virtually all biological events. The functions of proteins are coordinated through intricate regulatory networks of transient protein-protein interactions (PPIs). To predict and/or study PPIs, a wide variety of techniques have been developed over the last several decades. Many in vitro and in vivo assays have been implemented to explore the mechanism of these ubiquitous interactions. However, despite significant advances in these experimental approaches, many limitations exist such as false-positives/false-negatives, difficulty in obtaining crystal structures of proteins, challenges in the detection of transient PPI, among others. To overcome these limitations, many computational approaches have been developed which are becoming increasingly widely used to facilitate the investigation of PPIs. This book has gathered an ensemble of experts in the field, in 22 chapters, which have been broadly categorized into Computational Approaches, Experimental Approaches, and Others.
Author: Alfred Wittinghofer
Publisher: Springer
ISBN: 3709118069
Category : Science
Languages : en
Pages : 447
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Book Description
This first of two volumes provides a general overview of the genetics, structure, mechanism and regulation of the Ras superfamily proteins and describes in detail the signaling pathways and processes regulated by specific members of this family. The focus of this first volume is on the Rho and Ras subfamily of small G proteins. Renowned scientists provide insights into the biochemistry of the classical and non-classical small G-protein family members, their spatio-temporal regulation, their effectors and their roles in health and disease. Together with Volume 2, this book provides a comprehensive and state-of-the-art work on small G-proteins (GTPases). It is intended for graduates and professors in biochemistry and cell biology already working on small G-proteins (small GTPases), but also offers an extremely valuable resource for those readers who are new to the field.
Author: Giulia Petroni
Publisher: Academic Press
ISBN: 0128209119
Category : Science
Languages : en
Pages : 184
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Book Description
Non-canonical Autophagy: Mechanisms and Pathophysiological Implications outlines the differences between 'canonical' and 'non-canonical' forms of autophagy, highlighting the discoveries concerning the molecular mechanisms underlying these unconventional forms of autophagy and the advancements in pathophysiological features of 'non-canonical' autophagy. The book discusses all forms of 'non-canonical' autophagy and the complexity of autophagy-dependent cell death. Readers will gain a better understanding of mechanisms underlying 'non-canonical' autophagy so that they can interpret the biological effects of autophagy correctly and identify reliable, novel and effective treatment strategies. - Presents the most advanced information surrounding the molecular mechanisms underlying non-canonical autophagy - Outlines the increasing evidence regarding the involvement of non-canonical autophagy in multiple physiological and pathological processes - Discusses the therapeutic potential of autophagy modulators and the obstacles that have limited their development
Author: Florian Markowetz
Publisher: Cambridge University Press
ISBN: 131638098X
Category : Science
Languages : en
Pages : 287
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Book Description
Whereas genetic studies have traditionally focused on explaining heritance of single traits and their phenotypes, recent technological advances have made it possible to comprehensively dissect the genetic architecture of complex traits and quantify how genes interact to shape phenotypes. This exciting new area has been termed systems genetics and is born out of a synthesis of multiple fields, integrating a range of approaches and exploiting our increased ability to obtain quantitative and detailed measurements on a broad spectrum of phenotypes. Gathering the contributions of leading scientists, both computational and experimental, this book shows how experimental perturbations can help us to understand the link between genotype and phenotype. A snapshot of current research activity and state-of-the-art approaches to systems genetics are provided, including work from model organisms such as Saccharomyces cerevisiae and Drosophila melanogaster, as well as from human studies.
