Cited by 13Lipid Membrane Structure and BehaviorCellular transport and secretionLipid metabolism and biosynthesis

The DOI matches its Crossref record; 62 of the 62 references it cites were found in a registry or an index.

The PQ-loop protein Any1 segregates Drs2 and Neo1 functions required for viability and plasma membrane phospholipid asymmetry

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Takar, Mehmet, Huang, Yannan, Graham, Todd R.·2019·Journal of Lipid Research

Abstract

Membrane asymmetry is a key organizational feature of the plasma membrane. Type IV P-type ATPases (P4-ATPases) are phospholipid flippases that establish membrane asymmetry by translocating phospholipids, such as phosphatidylserine (PS) and phospatidylethanolamine, from the exofacial leaflet to the cytosolic leaflet. Saccharomyces cerevisiae expresses five P4-ATPases: Drs2, Neo1, Dnf1, Dnf2, and Dnf3. The inactivation of Neo1 is lethal, suggesting Neo1 mediates an essential function not exerted by the other P4-ATPases. However, the disruption of ANY1 , which encodes a PQ-loop membrane protein, allows the growth of neo1Δ and reveals functional redundancy between Golgi-localized Neo1 and Drs2. Here we show Drs2 PS flippase activity is required to support neo1Δ any1Δ viability. Additionally, a Dnf1 variant with enhanced PS flipping ability can replace Drs2 and Neo1 function in any1Δ cells. any1Δ also suppresses drs2Δ growth defects but not the loss of membrane asymmetry. Any1 overexpression perturbs the growth of cells but does not disrupt membrane asymmetry. Any1 coimmunoprecipitates with Neo1, an association prevented by the Any1-inactivating mutation D84G. These results indicate a critical role for PS flippase activity in Golgi membranes to sustain viability and suggests Any1 regulates Golgi membrane remodeling through protein-protein interactions rather than a previously proposed scramblase activity.

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Crossref · 10.1194/jlr.m093526

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62 of 62 references verified0 citation errors · 0 not checkable

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  • The yeast ortholog of CG13784 (ANY1) has been found to suppress loss of lipid flippases that act in endosome-to-Golgi recycling.

    “the yeast ortholog of CG13784 (ANY1) has been found to suppress loss of lipid flippases that act in endosome-to-Golgi recycling [67,68].”

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Metadata

Authors
Takar, M., Huang, Y., & Graham, T. R.
Affiliations
Vanderbilt University (US)
Corresponding author
Graham, Todd R.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
2019-05
Volume
60
Issue
5
Pages
1032-1042
ISSN
0022-2275 (ISSN-L)
OpenAlex
W2920672763
Cited by
12
References
62
Citations by year
2026: 2 · 2025: 1 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 1
FWCI
0.58
Type
journal article
Language
en
Open access
Locations
  • Journal of Lipid Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Institutes of Health (GM107978)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
P4-ATPase, phospholipid flippase, phosphatidylserine, membrane asymmetry, plasma membrane, Golgi membranes, functional redundancy, protein-protein interaction, Saccharomyces cerevisiae
MeSH terms
Adenosine Triphosphatases, Calcium-Transporting ATPases, Cell Membrane, Mutation, Phospholipids, Saccharomyces cerevisiae, Membrane Transport Proteins, Saccharomyces cerevisiae Proteins, Phospholipid Transfer Proteins

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