Mechanisms of Membrane Curvature Generation in Membrane Traffic

During the vesicular trafficking process, cellular membranes undergo dynamic morphological changes, in particular at the vesicle generation and fusion steps. Changes in membrane shape are regulated by small GTPases, coat proteins and other accessory proteins, such as BAR domain-containing proteins....

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Main Authors: Hye-Won Shin, Kazuhisa Nakayama, Hiroyuki Takatsu
Format: Article
Language:English
Published: MDPI AG 2012-02-01
Series:Membranes
Subjects:
Online Access:http://www.mdpi.com/2077-0375/2/1/118/
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author Hye-Won Shin
Kazuhisa Nakayama
Hiroyuki Takatsu
author_facet Hye-Won Shin
Kazuhisa Nakayama
Hiroyuki Takatsu
author_sort Hye-Won Shin
collection DOAJ
description During the vesicular trafficking process, cellular membranes undergo dynamic morphological changes, in particular at the vesicle generation and fusion steps. Changes in membrane shape are regulated by small GTPases, coat proteins and other accessory proteins, such as BAR domain-containing proteins. In addition, membrane deformation entails changes in the lipid composition as well as asymmetric distribution of lipids over the two leaflets of the membrane bilayer. Given that P4-ATPases, which catalyze unidirectional flipping of lipid molecules from the exoplasmic to the cytoplasmic leaflets of the bilayer, are crucial for the trafficking of proteins in the secretory and endocytic pathways, changes in the lipid composition are involved in the vesicular trafficking process. Membrane remodeling is under complex regulation that involves the composition and distribution of lipids as well as assembly of proteins.
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spelling doaj.art-3d95cb22939748889fb6c8eecae7e7d92023-09-02T18:14:36ZengMDPI AGMembranes2077-03752012-02-012111813310.3390/membranes2010118Mechanisms of Membrane Curvature Generation in Membrane TrafficHye-Won ShinKazuhisa NakayamaHiroyuki TakatsuDuring the vesicular trafficking process, cellular membranes undergo dynamic morphological changes, in particular at the vesicle generation and fusion steps. Changes in membrane shape are regulated by small GTPases, coat proteins and other accessory proteins, such as BAR domain-containing proteins. In addition, membrane deformation entails changes in the lipid composition as well as asymmetric distribution of lipids over the two leaflets of the membrane bilayer. Given that P4-ATPases, which catalyze unidirectional flipping of lipid molecules from the exoplasmic to the cytoplasmic leaflets of the bilayer, are crucial for the trafficking of proteins in the secretory and endocytic pathways, changes in the lipid composition are involved in the vesicular trafficking process. Membrane remodeling is under complex regulation that involves the composition and distribution of lipids as well as assembly of proteins.http://www.mdpi.com/2077-0375/2/1/118/membrane traffickingsmall GTPaseBAR domainP4-ATPasemembrane curvature
spellingShingle Hye-Won Shin
Kazuhisa Nakayama
Hiroyuki Takatsu
Mechanisms of Membrane Curvature Generation in Membrane Traffic
Membranes
membrane trafficking
small GTPase
BAR domain
P4-ATPase
membrane curvature
title Mechanisms of Membrane Curvature Generation in Membrane Traffic
title_full Mechanisms of Membrane Curvature Generation in Membrane Traffic
title_fullStr Mechanisms of Membrane Curvature Generation in Membrane Traffic
title_full_unstemmed Mechanisms of Membrane Curvature Generation in Membrane Traffic
title_short Mechanisms of Membrane Curvature Generation in Membrane Traffic
title_sort mechanisms of membrane curvature generation in membrane traffic
topic membrane trafficking
small GTPase
BAR domain
P4-ATPase
membrane curvature
url http://www.mdpi.com/2077-0375/2/1/118/
work_keys_str_mv AT hyewonshin mechanismsofmembranecurvaturegenerationinmembranetraffic
AT kazuhisanakayama mechanismsofmembranecurvaturegenerationinmembranetraffic
AT hiroyukitakatsu mechanismsofmembranecurvaturegenerationinmembranetraffic