Evidence map›Paper›PMID 24639465›Full record

ArticleJournal of cell science2014

The endocytic activity of the flagellar pocket in Trypanosoma brucei is regulated by an adjacent phosphatidylinositol phosphate kinase.

Lars Demmel, Katy Schmidt, Louise Lucast, Katharina Havlicek, Armin Zankel, Tina Koestler, Viktoria Reithofer, Pietro de Camilli, Graham Warren

Erratum issuedAbstract read
In one paragraph

Article in Journal of cell science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.9field-weighted citation impact, top 7% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 43 citations in OpenAlex.

  1. Characterization of the First Secreted Sorting Nexin Identified in theInternational journal of molecular sciences · 2024
    Article
  2. Article
  3. Article
  4. To the Surface and Back: Exo- and Endocytic Pathways inFrontiers in cell and developmental biology · 2021
    Review
  5. Article
  6. Biomolecules · 2020
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. The Enigmatic Role of Lipids in Cilia Signaling.Frontiers in cell and developmental biology · 2020
    Review
  12. Review
  13. The role of the PI(3,5)PMolecular and biochemical parasitology · 2017
    Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Loss of the BBSome perturbs endocytic trafficking and disrupts virulence of Trypanosoma brucei.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 2 countries.

Lars DemmelMax F. Perutz Laboratories, University of Vienna, Medical University of Vienna, 1030 Vienna, Austria.
Katy SchmidtDepartment of Cell Biology and Ultrastructure Research, Center for Anatomy and Cell Biology, Medical University of Vienna, 1090 Vienna, Austria.
Louise LucastDepartment of Cell Biology, Howard Hughes Medical Institute, and Program in Cellular Neuroscience, Neurodegeneration and Repair, Yale University School of Medicine, New Haven, CT 06510, USA.
Katharina HavlicekMax F. Perutz Laboratories, University of Vienna, Medical University of Vienna, 1030 Vienna, Austria.
Armin ZankelInstitute for Electron Microscopy, Graz University of Technology and Center for Electron Microscopy Graz, 8010 Graz, Austria.
Tina KoestlerCenter for Integrative Bioinformatics, Max F. Perutz Laboratories, University of Vienna and Medical University of Vienna, 1030 Vienna, Austria.
Viktoria ReithoferUniversity of Applied Sciences Wiener Neustadt, Department of Biomedical Analytics, 2700 Wiener Neustadt, Austria.
Pietro de CamilliDepartment of Cell Biology, Howard Hughes Medical Institute, and Program in Cellular Neuroscience, Neurodegeneration and Repair, Yale University School of Medicine, New Haven, CT 06510, USA.
Graham WarrenMax F. Perutz Laboratories, University of Vienna, Medical University of Vienna, 1030 Vienna, Austria Graham.Warren@mfpl.ac.at.
Max Perutz Labs · ATMedical University of Vienna · ATAustrian Centre for Electron Microscopy and Nanoanalysis · ATFachhochschule Wiener Neustadt · ATHoward Hughes Medical Institute · USYale University · US

Funding

Molecular Mechanisms in Synaptic Vesicle RecyclingR37NS036251 · NINDS · YALE UNIVERSITY · PI DE CAMILLI, PIETRO · 2010 to 2016
$2.7M
OCRL and the pathogenesis of Lowe Syndrome and Dent DiseaseR01DK082700 · NIDDK · YALE UNIVERSITY · PI DE CAMILLI, PIETRO · 2009 to 2016
$2.4M
Howard Hughes Medical InstituteNIDDK NIH HHS DK082700NIDDK NIH HHS R01 DK082700NINDS NIH HHS R37 NS036251NINDS NIH HHS R37NS036251-14
6 · The paper itself

Abstract

Phosphoinositides are spatially restricted membrane signaling molecules. Phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2]--a phosphoinositide that is highly enriched in, and present throughout, the plasma membrane--has been implicated in endocytosis. Trypanosoma brucei has one of the highest known rates of endocytosis, a process it uses to evade the immune system. To determine whether phosphoinositides play a role in endocytosis in this organism, we have identified and characterized one of the enzymes that is responsible for generating PI(4,5)P2. Surprisingly, this phosphoinositide was found to be highly concentrated in the flagellar pocket, the only site of endocytosis and exocytosis in this organism. The enzyme (designated TbPIPKA, annotated as Tb927.10.1620) was present at the neck of the pocket, towards the anterior-end of the parasite. Depletion of TbPIPKA led to depletion of PI(4,5)P2 and enlargement of the pocket, the result of impaired endocytosis. Taken together, these data suggest that TbPIPKA and its product PI(4,5)P2 are important for endocytosis and, consequently, for homeostasis of the flagellar pocket.

Indexed as

Cell MembraneEndocytosisFlagellaPhosphatidylinositol 4,5-DiphosphatePhosphotransferases (Alcohol Group Acceptor)Trypanosoma brucei brucei1-phosphatidylinositol-4-phosphate 5-kinasePhosphatidylinositol 4,5-DiphosphatePhosphotransferases (Alcohol Group Acceptor)EndocytosisFlagellar pocketPI(4,5)P2PIP kinaseTrypanosoma brucei

Identifiers

PMID24639465
PMCPMC4021478
OpenAlexW1968286060

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.