Evidence map›Paper›PMID 21685506›Full record

ArticleMolecular & cellular proteomics : MCP2011

Independent analysis of the flagellum surface and matrix proteomes provides insight into flagellum signaling in mammalian-infectious Trypanosoma brucei.

Michael Oberholzer, Gerasimos Langousis, HoangKim T Nguyen, Edwin A Saada, Michelle M Shimogawa, Zophonias O Jonsson, Steven M Nguyen, James A Wohlschlegel, Kent L Hill

Open access · hybridAbstract read
In one paragraph

Article in Molecular & cellular proteomics : MCP, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
8.6field-weighted citation impact, top 2% 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

90 citing papers in PubMed, 145 citations in OpenAlex.

  1. Virulence · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. FAP20 is required for flagellum assembly inMolecular biology of the cell · 2024
    Article
  6. Article
  7. Article
  8. FAP20 is required for flagellum assembly inbioRxiv : the preprint server for biology · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Fatty acid uptake inFrontiers in cellular and infection microbiology · 2022
    Review
  15. Frontiers in molecular biosciences · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

30 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 2 countries.

Michael OberholzerDepartment of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, CA 90095, USA.
Gerasimos Langousis
HoangKim T Nguyen
Edwin A Saada
Michelle M Shimogawa
Zophonias O Jonsson
Steven M Nguyen
James A Wohlschlegel
Kent L Hill
University of California, Los Angeles · US

Funding

UCLA NIGMS T32 Program AssessmentT32GM007185 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI TORRES, JORGE · 1985 to 2020
$21.7M
UCLA MSD ProgramR25GM055052 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BARBER, PAUL HENRY, HASSON, TAMA W. · 1996 to 2021
$9.2M
Biochemical and Functional Analysis of TrypaninR01AI052348 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HILL, KENT L · 2002 to 2023
$7.4M
Proteolytic Control of Iron Metabolism by the Ubiquitin Ligase FBXL5R01GM089778 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WOHLSCHLEGEL, JAMES AKIRA · 2010 to 2023
$4.0M
PREDOCTORAL TRAINING PROGRAM IN GENETIC MECHANISMS AT UCT32GM007104 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GOBER, JAMES W · 1985 to 2011
$3.6M
Biochemical and Functional Analysis of TrypaninR56AI052348 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HILL, KENT L · 2007 to 2007
$374k
NIAID NIH HHS AI052348NIAID NIH HHS R01 AI052348NIAID NIH HHS R56 AI052348NIGMS NIH HHS GM07185NIGMS NIH HHS GM089778NIGMS NIH HHS GM55052NIGMS NIH HHS GM GM07104NIGMS NIH HHS R01 GM089778NIGMS NIH HHS R25 GM055052NIGMS NIH HHS T32 GM007104NIGMS NIH HHS T32 GM007185
6 · The paper itself

Abstract

The flagellum of African trypanosomes is an essential and multifunctional organelle that functions in motility, cell morphogenesis, and host-parasite interaction. Previous studies of the trypanosome flagellum have been limited by the inability to purify flagella without first removing the flagellar membrane. This limitation is particularly relevant in the context of studying flagellum signaling, as signaling requires surface-exposed proteins in the flagellar membrane and soluble signaling proteins in the flagellar matrix. Here we employ a combination of genetic and mechanical approaches to purify intact flagella from the African trypanosome, Trypanosoma brucei, in its mammalian-infectious stage. We combined flagellum purification with affinity-purification of surface-exposed proteins to conduct independent proteomic analyses of the flagellum surface and matrix fractions. The proteins identified encompass a broad range of molecular functionalities, including many predicted to function in signaling. Immunofluorescence and RNA interference studies demonstrate flagellum localization and function for proteins identified and provide insight into mechanisms of flagellum attachment and motility. The flagellum surface proteome includes many T. brucei-specific proteins and is enriched for proteins up-regulated in the mammalian-infectious stage of the parasite life-cycle. The combined results indicate that the flagellum surface presents a diverse and dynamic host-parasite interface that is well-suited for host-parasite signaling.

Indexed as

AnimalsCell MovementExtracellular Matrix ProteinsFlagellaHost-Parasite InteractionsHumansLife Cycle StagesMembrane ProteinsProteomeProtozoan ProteinsRNA InterferenceSignal TransductionTrypanosoma brucei bruceiExtracellular Matrix ProteinsMembrane ProteinsProteomeProtozoan Proteins

Identifiers

PMID21685506
PMCPMC3205874
OpenAlexW2056960490

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.