ArticleThe Journal of biological chemistry2013
Phospholipid flippases Lem3p-Dnf1p and Lem3p-Dnf2p are involved in the sorting of the tryptophan permease Tat2p in yeast.
Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 34 citations in OpenAlex.
- Review
- Cellular Responses and Targets in Food Spoilage Yeasts Exposed to Antifungal Prenylated Isoflavonoids.Microbiology spectrum · 2023Article
- Article
- P-Type ATPase Apt1 of the Fungal PathogenJournal of fungi (Basel, Switzerland) · 2021Article
- Phospholipid flippases and Sfk1 are essential for the retention of ergosterol in the plasma membrane.Molecular biology of the cell · 2021Article
- Exomer complex regulates protein traffic at the TGN through differential interactions with cargos and clathrin adaptor complexes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021Article
- Lipid flippases in polarized growth.Current genetics · 2021Review
- Moonlighting Proteins at the Candidal Cell Surface.Microorganisms · 2020Review
- A systematic approach to identify recycling endocytic cargo depending on the GARP complex.eLife · 2019Article
- Role of lipid transporters in fungal physiology and pathogenicity.Computational and structural biotechnology journal · 2019Review
- Phospholipid flippases and Sfk1p, a novel regulator of phospholipid asymmetry, contribute to low permeability of the plasma membrane.Molecular biology of the cell · 2018Article
- Cfs1p, a Novel Membrane Protein in the PQ-Loop Family, Is Involved in Phospholipid Flippase Functions in Yeast.G3 (Bethesda, Md.) · 2017Article
- Influence of non-steroidal anti-inflammatory drugs on Drosophila melanogaster longevity.Oncotarget · 2015Article
- Control of Plasma Membrane Permeability by ABC Transporters.Eukaryotic cell · 2015Article
- Protein kinase Gin4 negatively regulates flippase function and controls plasma membrane asymmetry.The Journal of cell biology · 2015Article
- Inositol depletion restores vesicle transport in yeast phospholipid flippase mutants.PloS one · 2015Article
- Plasma membrane aminoglycerolipid flippase function is required for signaling competence in the yeast mating pheromone response pathway.Molecular biology of the cell · 2015Article
- Asymmetric distribution of phosphatidylserine is generated in the absence of phospholipid flippases in Saccharomyces cerevisiae.MicrobiologyOpen · 2014Article
- P4-ATPases: lipid flippases in cell membranes.Pflugers Archiv : European journal of physiology · 2014Review
- Fpk1/2 kinases regulate cellular sphingoid long-chain base abundance and alter cellular resistance to LCB elevation or depletion.MicrobiologyOpen · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The type 4 P-type ATPases are flippases that generate phospholipid asymmetry in membranes. In budding yeast, heteromeric flippases, including Lem3p-Dnf1p and Lem3p-Dnf2p, translocate phospholipids to the cytoplasmic leaflet of membranes. Here, we report that Lem3p-Dnf1/2p are involved in transport of the tryptophan permease Tat2p to the plasma membrane. The lem3Δ mutant exhibited a tryptophan requirement due to the mislocalization of Tat2p to intracellular membranes. Tat2p was relocalized to the plasma membrane when trans-Golgi network (TGN)-to-endosome transport was inhibited. Inhibition of ubiquitination by mutations in ubiquitination machinery also rerouted Tat2p to the plasma membrane. Lem3p-Dnf1/2p are localized to endosomal/TGN membranes in addition to the plasma membrane. Endocytosis mutants, in which Lem3p-Dnf1/2p are sequestered to the plasma membrane, also exhibited the ubiquitination-dependent missorting of Tat2p. These results suggest that Tat2p is ubiquitinated at the TGN and missorted to the vacuolar pathway in the lem3Δ mutant. The NH(2)-terminal cytoplasmic region of Tat2p containing ubiquitination acceptor lysines interacted with liposomes containing acidic phospholipids, including phosphatidylserine. This interaction was abrogated by alanine substitution mutations in the basic amino acids downstream of the ubiquitination sites. Interestingly, a mutant Tat2p containing these substitutions was missorted in a ubiquitination-dependent manner. We propose the following model based on these results; Tat2p is not ubiquitinated when the NH(2)-terminal region is bound to membrane phospholipids, but if it dissociates from the membrane due to a low level of phosphatidylserine caused by perturbation of phospholipid asymmetry in the lem3Δ mutant, Tat2p is ubiquitinated and then transported from the TGN to the vacuole.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.