Evidence map›Paper›PMID 19874557›Full record

ArticleTraffic (Copenhagen, Denmark)2009

Hydrophobic and basic domains target proteins to lipid droplets.

Mercedes Ingelmo-Torres, Elena González-Moreno, Adam Kassan, Michael Hanzal-Bayer, Francesc Tebar, Albert Herms, Thomas Grewal, John F Hancock, Carlos Enrich, Marta Bosch and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Traffic (Copenhagen, Denmark), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

47 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. A Role for Caveolin-3 in the Pathogenesis of Muscular Dystrophies.International journal of molecular sciences · 2020
    Review
  12. Article
  13. Protein Quality Control and Lipid Droplet Metabolism.Annual review of cell and developmental biology · 2020
    Review
  14. Review
  15. Dynamics and functions of lipid droplets.Nature reviews. Molecular cell biology · 2019
    Review
  16. Establishing the lipid droplet proteome: Mechanisms of lipid droplet protein targeting and degradation.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2017
    Review
  17. Review
  18. Article
  19. Article
  20. Review
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

13 authors at 6 institutions in 3 countries.

Mercedes Ingelmo-TorresDepartament de Biologia Cel.lular, Immunologia i Neurociències, Universitat de Barcelona, Casanova 143, 08036 Barcelona, Spain.
Elena González-Moreno
Adam Kassan
Michael Hanzal-Bayer
Francesc Tebar
Albert Herms
Thomas Grewal
John F Hancock
Carlos Enrich
Marta Bosch
Steven P Gross
Robert G Parton
Albert Pol
Consorci Institut D'Investigacions Biomediques August Pi I Sunyer · ESUniversitat de Barcelona · ESUniversity of Queensland · AUInstitució Catalana de Recerca i Estudis Avançats · ESUniversity of California, Irvine · USUniversity of Sydney · AU

Funding

In vivo regulation of bi-directional transportR01GM064624 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI GROSS, STEVEN P · 2002 to 2012
$2.8M
NIGMS NIH HHS GM64624NIGMS NIH HHS R01 GM064624
6 · The paper itself

Abstract

In recent years, progress in the study of the lateral organization of the plasma membrane has led to the proposal that mammalian cells use two different organelles to store lipids: intracellular lipid droplets (LDs) and plasma membrane caveolae. Experimental evidence suggests that caveolin (CAV) may act as a sensitive lipid-organizing molecule that physically connects these two lipid-storing organelles. Here, we determine the sequences necessary for efficient sorting of CAV to LDs. We show that targeting is a process cooperatively mediated by two motifs. CAV's central hydrophobic domain (Hyd) anchors CAV to the endoplasmic reticulum (ER). Next, positively charged sequences (Pos-Seqs) mediate sorting of CAVs into LDs. Our findings were confirmed by identifying an equivalent, non-conserved but functionally interchangeable Pos-Seq in ALDI, a bona fide LD-resident protein. Using this information, we were able to retarget a cytosolic protein and convert it to an LD-resident protein. Further studies suggest three requirements for targeting via this mechanism: the positive charge of the Pos-Seq, physical proximity between Pos-Seq and Hyd and a precise spatial orientation between both motifs. The study uncovers remarkable similarities with the signals that target proteins to the membrane of mitochondria and peroxisomes.

Indexed as

Amino Acid MotifsAmino Acid SequenceLipidsMolecular Sequence DataProteinsLipidsProteins

Identifiers

PMID19874557
PMCPMC2913680
OpenAlexW2061162868

What OpenQuestion holds

Textmetadata
LicenceTDM
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.