Evidence map›Paper›PMID 10225950›Full record

ArticleThe Journal of cell biology1999

Dynamic association of proteasomal machinery with the centrosome.

W C Wigley, R P Fabunmi, M G Lee, C R Marino, S Muallem, G N DeMartino, P J Thomas

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 209 papers.

0numbers the graph read from it
0cells of the map it votes in
209citing papers in PubMed
12.3field-weighted citation impact, top 1% 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

209 citing papers in PubMed, 513 citations in OpenAlex.

  1. Article
  2. Centriolar satellites regulatebioRxiv : the preprint server for biology · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Proteasome localization and activity in pig brain andFrontiers in cellular neuroscience · 2024
    Article
  13. Article
  14. The E3 ligase Poe promotes Pericentrin degradation.Molecular biology of the cell · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Hedgehog signaling mechanism and role in cancer.Seminars in cancer biology · 2022
    Review
  20. Article

149 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

7 authors at 4 institutions in 2 countries.

W C WigleyDepartment of Physiology, The University of Texas Southwestern Medical Center, Dallas, Texas 75235, USA.
R P Fabunmi
M G Lee
C R Marino
S Muallem
G N DeMartino
P J Thomas
University of Tennessee at Knoxville · USYonsei University · KRThe University of Texas Southwestern Medical Center · USUniversity of Tennessee Health Science Center · US

Funding

MOLECULAR MECHANISMS OF ION TRANSPORT BY THE SMGR01DE012309 · NIDCR · UT SOUTHWESTERN MEDICAL CENTER · PI THOMAS, PHILIP J · 1997 to 2011
$4.4M
HORMONE REGULATION OF CA++ I- IN PANCREATIC ACINAR CELLSR01DK038938 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI STULL, JAMES TRAVIS · 1987 to 2010
$3.7M
DEVELOPMENT OF MEMBRANE PROTEIN STRUCTURER37DK049835 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI THOMAS, PHILIP J · 2008 to 2017
$3.6M
FUNCTION AND REGULATION OF THE PROTEASOMER01DK046181 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI DEMARTINO, GEORGE N. · 1994 to 2012
$3.2M
Development of Membrane Protein StructureR01DK049835 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI THOMAS, PHILIP J · 1996 to 2007
$2.1M
Function and regulation of the proteasomeR56DK046181 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI DEMARTINO, GEORGE N. · 2007 to 2007
$353k
NIDCR NIH HHS DE12309NIDCR NIH HHS R01 DE012309NIDDK NIH HHS DK46181NIDDK NIH HHS DK49835NIDDK NIH HHS R01 DK038938NIDDK NIH HHS R01 DK046181NIDDK NIH HHS R01 DK049835NIDDK NIH HHS R37 DK049835NIDDK NIH HHS R56 DK046181
6 · The paper itself

Abstract

Although the number of pathologies known to arise from the inappropriate folding of proteins continues to grow, mechanisms underlying the recognition and ultimate disposition of misfolded polypeptides remain obscure. For example, how and where such substrates are identified and processed is unknown. We report here the identification of a specific subcellular structure in which, under basal conditions, the 20S proteasome, the PA700 and PA28 (700- and 180-kD proteasome activator complexes, respectively), ubiquitin, Hsp70 and Hsp90 (70- and 90-kD heat shock protein, respectively) concentrate in HEK 293 and HeLa cells. The structure is perinuclear, surrounded by endoplasmic reticulum, adjacent to the Golgi, and colocalizes with gamma-tubulin, an established centrosomal marker. Density gradient fractions containing purified centrosomes are enriched in proteasomal components and cell stress chaperones. The centrosome-associated structure enlarges in response to inhibition of proteasome activity and the level of misfolded proteins. For example, folding mutants of CFTR form large inclusions which arise from the centrosome upon inhibition of proteasome activity. At high levels of misfolded protein, the structure not only expands but also extensively recruits the cytosolic pools of ubiquitin, Hsp70, PA700, PA28, and the 20S proteasome. Thus, the centrosome may act as a scaffold, which concentrates and recruits the systems which act as censors and modulators of the balance between folding, aggregation, and degradation.

Indexed as

Adenosine TriphosphatasesAnimalsCentrosomeChickensCysteine EndopeptidasesCystic Fibrosis Transmembrane Conductance RegulatorFetusGene Expression Regulation, EnzymologicHeLa CellsHSP70 Heat-Shock ProteinsHumansKidneyMultienzyme ComplexesMutagenesisProteasome Endopeptidase ComplexProtein FoldingAdenosine TriphosphatasesCFTR protein, humanCysteine EndopeptidasesCystic Fibrosis Transmembrane Conductance RegulatorHSP70 Heat-Shock ProteinsMultienzyme ComplexesProteasome Endopeptidase ComplexTubulin

Identifiers

PMID10225950
PMCPMC2185077
OpenAlexW2114873132

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.