Gtpases Regulating Membrane Targeting And Fusion

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Gtpases Regulating Membrane Targeting And Fusion

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Author : W. E. Balch
language : en
Publisher: Gulf Professional Publishing
Release Date : 2005-12-13

Gtpases Regulating Membrane Targeting And Fusion written by W. E. Balch and has been published by Gulf Professional Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-12-13 with Science categories.

Rab GTPases now comprise a family of >63 members. They are emerging as the key hub element controlling the membrane architecture of eukaryotic cells. They are intimately involved in vesicle targeting and fusion in both the endocytic and exocytic pathways and direct the assembly and disassembly of protein complexes that include regulators (GEFs and GAPs), effectors (tethers/motors) and fusion components (SNAREs) that control membrane targeting and fusion. During the last 3 years the field has virtually exploded with the identification and characterization of many new Rab proteins and their effectors. Our understanding of how Rab GTPases control membrane function remains at its infancy. This volume of Methods in Enzymology, GTPases Regulating Membrane Targeting and Fusion, provides a wealth of new concepts, approaches and tools to study Rab proteins in the test tube and in living cells that will be of strong benefit to both established laboratories and new investigators in the field to elucidate Rab GTPase function in cellular development, differentiation and proliferation. Comprehensive overview of Rab GTPase phylogeny and systems biology Identification and characterization of Rab GEFs, GAPs and effectors General methodologies to study Rab GTPase function in vitro and in vivo using biochemical, molecular and microscopy approaches

Gtpases Regulating Membrane Targeting And Fusion

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Author :
language : en
Publisher: Academic Press
Release Date : 2005-12-13

Gtpases Regulating Membrane Targeting And Fusion written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-12-13 with Science categories.

Rab GTPases now comprise a family of >63 members. They are emerging as the key hub element controlling the membrane architecture of eukaryotic cells. They are intimately involved in vesicle targeting and fusion in both the endocytic and exocytic pathways and direct the assembly and disassembly of protein complexes that include regulators (GEFs and GAPs), effectors (tethers/motors) and fusion components (SNAREs) that control membrane targeting and fusion. During the last 3 years the field has virtually exploded with the identification and characterization of many new Rab proteins and their effectors. Our understanding of how Rab GTPases control membrane function remains at its infancy. This volume of Methods in Enzymology, GTPases Regulating Membrane Targeting and Fusion, provides a wealth of new concepts, approaches and tools to study Rab proteins in the test tube and in living cells that will be of strong benefit to both established laboratories and new investigators in the field to elucidate Rab GTPase function in cellular development, differentiation and proliferation.

Methods In Enzymology

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Author : Sidney P. Colowick
language : en
Publisher:
Release Date : 2005

Methods In Enzymology written by Sidney P. Colowick and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Cellular control mechanisms categories.

Gtpases Regulating Membrane Dynamics

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Author : W. E. Balch
language : en
Publisher: Gulf Professional Publishing
Release Date : 2005-12-13

Gtpases Regulating Membrane Dynamics written by W. E. Balch and has been published by Gulf Professional Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-12-13 with Science categories.

Provides a comprehensive set of articles describing the use and application of state-of-the-art methodologies to identify and characterize these GTPases and their expanding list of regulators and effectors. This work also includes methodologies focused on biochemical, molecular and advanced imaging techniques.

Regulators And Effectors Of Small Gtpases Rho Family

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Author :
language : en
Publisher: Elsevier
Release Date : 2006-02-21

Regulators And Effectors Of Small Gtpases Rho Family written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-02-21 with Science categories.

The Ras superfamily (>150 human members) encompasses Ras GTPases involved in cell proliferation, Rho GTPases involved in regulating the cytoskeleton, Rab GTPases involved in membrane targeting/fusion and a group of GTPases including Sar1, Arf, Arl and dynamin involved in vesicle budding/fission. These GTPases act as molecular switches and their activities are controlled by a large number of regulatory molecules that affect either GTP loading (guanine nucleotide exchange factors or GEFs) or GTP hydrolysis (GTPase activating proteins or GAPs). In their active state, they interact with a continually increasing, functionally complex array of downstream effectors. Since the last Methods in Enzymology volume on this topic in 2000, Rho GTPases have continued to receive a huge amount of attention. The human genome sequence has revealed the full extent of the Rho GEF and Rho GAP families (over 80 members for each) and the challenge of identifying the molecular interactions and cellular pathways influenced by each of these regulators is a daunting prospect. This new volume, Regulators and Effectors of Small GTPases: Rho Family, describes some of the methods currently being used to examine Rho family GTPase regulation at the biochemical and cellular level. Describes the methods currently being used to examine Rho family GTPase regulation at the biochemical and cellular levels Includes new imaging techniques that revolutionize the ability to visualize GTPase activities Over 150 international contributors

Rab Gtpases And Membrane Trafficking

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Author : Guangpu Li
language : en
Publisher: Bentham Science Publishers
Release Date : 2012-05-21

Rab Gtpases And Membrane Trafficking written by Guangpu Li and has been published by Bentham Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-21 with Science categories.

"Ypt/Rab GTPases form the largest branch of the Ras-related small GTPase superfamily and regulate intracellular membrane trafficking in all eukaryotes. Since their discovery over two decades ago, a wealth of information has accumulated about the roles that"

Regulators And Effectors Of Small Gtpases

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Author : William Edward Balch
language : en
Publisher: Academic Press
Release Date : 2006

Regulators And Effectors Of Small Gtpases written by William Edward Balch and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.

The Ras superfamily (>150 human members) encompasses Ras GTPases involved in cell proliferation, Rho GTPases involved in regulating the cytoskeleton, Rab GTPases involved in membrane targeting/fusion and a group of GTPases including Sar1, Arf, Arl and dynamin involved in vesicle budding/fission. These GTPases act as molecular switches and their activities are controlled by a large number of regulatory molecules that affect either GTP loading (guanine nucleotide exchange factors or GEFs) or GTP hydrolysis (GTPase activating proteins or GAPs). In their active state, they interact with a continually increasing, functionally complex array of downstream effectors. Since the last Methods in Enzymology volume on this topic in 2000, the study of Ras Family GTPases has witnessed a plethora of new directions and trends. With regards to the founding member of the Ras superfamily, the study of Ras in oncogenesis has seen the development and application of more advanced model cell culture and animal systems. The discovery of mutationally activated B-Raf in human cancers has injected renewed interest in this classical effector pathway of Ras. *Includes a database for Ras family proteins and their effectors and regulators *Complimentary to volume 406 coverage of the Rho family *Over 150 international contributors

Rab Gtpases

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Author : Guangpu Li (Molecular biologist)
language : en
Publisher:
Release Date : 2021

Rab Gtpases written by Guangpu Li (Molecular biologist) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Guanosine triphosphatase categories.

This second edition volume expands on the previous edition with a discussion of new research and discoveries in the Rab field. Chapters in this book cover topics such as new information on Rab regulation and localization; interaction; function; and diseases. 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. Cutting-edge and comprehensive, Rab GTPases: Methods and Protocols, Second Edition is a valuable resource for scientists working in the fields of Rab and other small GTPases, and beyond.

Rab Gtpase Activating Proteins At The Golgi Endosome Interface

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Author : Ryan Michael Nottingham
language : en
Publisher: Stanford University
Release Date : 2010

Rab Gtpase Activating Proteins At The Golgi Endosome Interface written by Ryan Michael Nottingham and has been published by Stanford University this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

Rab GTPases are master regulators of membrane trafficking in eukaryotic cells. With GTP bound, they regulate trafficking by recruiting effectors to specific membrane-bound compartments. GTPase-activating proteins (GAPs) stimulate a Rab's intrinsic rate of GTP hydrolysis, thus inactivating the Rab by converting bound GTP to GDP. Regulation of Rab proteins links the formation and breakdown of sequential, Rab-regulated membrane domains in the secretory and endocytic pathways. This thesis presents the characterization of a novel RabGAP, RUTBC1. RUTBC1 binds Rab9 in vitro and in cells through interactions with its N-terminus. Overexpression of RUTBC1 only slightly disrupts MPR trafficking and RUTBC1 does not function as a GAP for Rab9. In vitro biochemical screening of Rab proteins revealed that RUTBC1 has GAP activity toward Rab33b and Rab32. These data suggest that RUTBC1 might function to link inactivation of these Rabs in relation to a Rab9 microdomain, in support of the existence of a Rab cascade at the interface between the Golgi apparatus and endosomes. Depletion of RUTBC1 unexpectedly led to concomitant depletion of Atg16L1. Atg16L1 has an established and essential role in macroautophagy, a highly conserved cellular recycling process. Overexpression of Atg16L1 caused the formation of large puncta in the cytoplasm, which are also labeled by endogenous RUTBC1 and may represent autophagosomes. Atg16L1 is a known Rab33b effector, suggesting that Rab33b, RUTBC1 and Atg16L1 function together to regulate autophagosome formation. Finally, RUTBC2, which is highly related to RUTBC1, also binds specifically to Rab9. In vitro biochemical screening for RUTBC2's Rab substrates showed that RUTBC2 had highest GAP activity toward Rab34 and Rab36, two very similar Rabs thought to play a role in secretion. The difference in substrate specificity between RUTBC1 and RUTBC2 further exemplifies the highly complex integration of diverse membrane trafficking pathways in mammalian cells.

Regulators And Effectors Of Small Gtpases Rho Family

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Author :
language : en
Publisher: Academic Press
Release Date : 2006-02-21

Regulators And Effectors Of Small Gtpases Rho Family written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-02-21 with Science categories.

The Ras superfamily (>150 human members) encompasses Ras GTPases involved in cell proliferation, Rho GTPases involved in regulating the cytoskeleton, Rab GTPases involved in membrane targeting/fusion and a group of GTPases including Sar1, Arf, Arl and dynamin involved in vesicle budding/fission. These GTPases act as molecular switches and their activities are controlled by a large number of regulatory molecules that affect either GTP loading (guanine nucleotide exchange factors or GEFs) or GTP hydrolysis (GTPase activating proteins or GAPs). In their active state, they interact with a continually increasing, functionally complex array of downstream effectors. Since the last Methods in Enzymology volume on this topic in 2000, Rho GTPases have continued to receive a huge amount of attention. The human genome sequence has revealed the full extent of the Rho GEF and Rho GAP families (over 80 members for each) and the challenge of identifying the molecular interactions and cellular pathways influenced by each of these regulators is a daunting prospect. This new volume, Regulators and Effectors of Small GTPases: Rho Family, describes some of the methods currently being used to examine Rho family GTPase regulation at the biochemical and cellular level. Describes the methods currently being used to examine Rho family GTPase regulation at the biochemical and cellular levels Includes new imaging techniques that revolutionize the ability to visualize GTPase activities Over 150 international contributors