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The transport mechanism of P4 ATPase lipid flippases

López-Marqués, Rosa L. ; Gourdon, Pontus LU ; Günther Pomorski, Thomas and Palmgren, Michael (2020) In The Biochemical journal 477(19). p.3769-3790
Abstract

P4 ATPase lipid flippases are ATP-driven transporters that translocate specific lipids from the exoplasmic to the cytosolic leaflet of biological membranes, thus establishing a lipid gradient between the two leaflets that is essential for many cellular processes. While substrate specificity, subcellular and tissue-specific expression, and physiological functions have been assigned to a number of these transporters in several organisms, the mechanism of lipid transport has been a topic of intense debate in the field. The recent publication of a series of structural models based on X-ray crystallography and cryo-EM studies has provided the first glimpse into how P4 ATPases have adapted the transport mechanism used by the cation-pumping... (More)

P4 ATPase lipid flippases are ATP-driven transporters that translocate specific lipids from the exoplasmic to the cytosolic leaflet of biological membranes, thus establishing a lipid gradient between the two leaflets that is essential for many cellular processes. While substrate specificity, subcellular and tissue-specific expression, and physiological functions have been assigned to a number of these transporters in several organisms, the mechanism of lipid transport has been a topic of intense debate in the field. The recent publication of a series of structural models based on X-ray crystallography and cryo-EM studies has provided the first glimpse into how P4 ATPases have adapted the transport mechanism used by the cation-pumping family members to accommodate a substrate that is at least an order of magnitude larger than cations.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
autoinhibition, CDC50 protein, cryo-electron microscopy, flippases, lipid transport, P4 ATPases
in
The Biochemical journal
volume
477
issue
19
pages
22 pages
publisher
Portland Press
external identifiers
  • scopus:85092886707
  • pmid:33045059
ISSN
0264-6021
DOI
10.1042/BCJ20200249
language
English
LU publication?
yes
id
ca3b07bb-2f1f-4d5a-b3e1-03f8d6fcf759
date added to LUP
2020-11-06 09:06:03
date last changed
2024-06-12 23:52:09
@article{ca3b07bb-2f1f-4d5a-b3e1-03f8d6fcf759,
  abstract     = {{<p>P4 ATPase lipid flippases are ATP-driven transporters that translocate specific lipids from the exoplasmic to the cytosolic leaflet of biological membranes, thus establishing a lipid gradient between the two leaflets that is essential for many cellular processes. While substrate specificity, subcellular and tissue-specific expression, and physiological functions have been assigned to a number of these transporters in several organisms, the mechanism of lipid transport has been a topic of intense debate in the field. The recent publication of a series of structural models based on X-ray crystallography and cryo-EM studies has provided the first glimpse into how P4 ATPases have adapted the transport mechanism used by the cation-pumping family members to accommodate a substrate that is at least an order of magnitude larger than cations.</p>}},
  author       = {{López-Marqués, Rosa L. and Gourdon, Pontus and Günther Pomorski, Thomas and Palmgren, Michael}},
  issn         = {{0264-6021}},
  keywords     = {{autoinhibition; CDC50 protein; cryo-electron microscopy; flippases; lipid transport; P4 ATPases}},
  language     = {{eng}},
  number       = {{19}},
  pages        = {{3769--3790}},
  publisher    = {{Portland Press}},
  series       = {{The Biochemical journal}},
  title        = {{The transport mechanism of P4 ATPase lipid flippases}},
  url          = {{http://dx.doi.org/10.1042/BCJ20200249}},
  doi          = {{10.1042/BCJ20200249}},
  volume       = {{477}},
  year         = {{2020}},
}