Evidence map›Paper›PMID 22238364›Full record

ArticleMolecular biology of the cell2012

Derlin-1 and UBXD8 are engaged in dislocation and degradation of lipidated ApoB-100 at lipid droplets.

Michitaka Suzuki, Toshihiko Otsuka, Yuki Ohsaki, Jinglei Cheng, Takako Taniguchi, Hisashi Hashimoto, Hisaaki Taniguchi, Toyoshi Fujimoto

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

69 citing papers in PubMed, 113 citations in OpenAlex.

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  15. Article
  16. Lipid Droplets and Their Participation in Zika Virus Infection.International journal of molecular sciences · 2022
    Review
  17. Article
  18. Role of the Ubiquitin System in Stress Granule Metabolism.International journal of molecular sciences · 2022
    Review
  19. Review
  20. Review

9 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

8 authors at 2 institutions in 1 country.

Michitaka SuzukiDepartment of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa, Nagoya 466-8550, Japan.
Toshihiko Otsuka
Yuki Ohsaki
Jinglei Cheng
Takako Taniguchi
Hisashi Hashimoto
Hisaaki Taniguchi
Toyoshi Fujimoto
Nagoya University · JPTokushima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Apolipoprotein B-100 (ApoB) is the principal component of very low density lipoprotein. Poorly lipidated nascent ApoB is extracted from the Sec61 translocon and degraded by proteasomes. ApoB lipidated in the endoplasmic reticulum (ER) lumen is also subjected to proteasomal degradation, but where and how it dislocates to the cytoplasm remain unknown. In the present study, we demonstrate that ApoB after lipidation is dislocated to the cytoplasmic surface of lipid droplets (LDs) and accumulates as ubiquitinated ApoB in Huh7 cells. Depletion of UBXD8, which is almost confined to LDs in this cell type, decreases recruitment of p97 to LDs and causes an increase of both ubiquitinated ApoB on the LD surface and lipidated ApoB in the ER lumen. In contrast, abrogation of Derlin-1 function induces an accumulation of lipidated ApoB in the ER lumen but does not increase ubiquitinated ApoB on the LD surface. UBXD8 and Derlin-1 bind with each other and with lipidated ApoB and show colocalization around LDs. These results indicate that ApoB after lipidation is dislocated from the ER lumen to the LD surface for proteasomal degradation and that Derlin-1 and UBXD8 are engaged in the predislocation and postdislocation steps, respectively.

Indexed as

Endoplasmic Reticulum-Associated DegradationProteolysisAnimalsApolipoprotein B-100Blood ProteinsCell Line, TumorChlorocebus aethiopsCOS CellsCytoplasmHeLa CellsHumansMembrane ProteinsRNA, Small InterferingApolipoprotein B-100Blood ProteinsDERL1 protein, humanFAF2 protein, humanMembrane ProteinsRNA, Small Interfering

Identifiers

PMID22238364
PMCPMC3290640
OpenAlexW2106690639

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.