Evidence map›Paper›PMID 18299329›Full record

ArticleThe Journal of biological chemistry2008

BI-1 regulates endoplasmic reticulum Ca2+ homeostasis downstream of Bcl-2 family proteins.

Chunyan Xu, Wenjie Xu, Amy E Palmer, John C Reed

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
15.2field-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

52 citing papers in PubMed, 119 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Bcl-2-Protein Family as Modulators of IPCold Spring Harbor perspectives in biology · 2020
    Review
  11. Article
  12. Article
  13. Ion and pH Sensitivity of a TMBIM CaStructure (London, England : 1993) · 2019
    Article
  14. Review
  15. Review
  16. Article
  17. TMBIM-mediated CaBiochimica et biophysica acta. Molecular cell research · 2017
    Review
  18. Article
  19. PeerJ · 2017
    Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Chunyan XuProgram on Apoptosis and Cell Death Research, Burnham Institute for Medical Research, La Jolla, California 92037, USA.
Wenjie Xu
Amy E Palmer
John C Reed
Sanford Burnham Prebys Medical Discovery Institute · USUniversity of California, San Diego · US

Funding

DYNAMICS OF SIGNAL TRANSDUCTION IN NEURONSR01NS027177 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ADAMS, STEPHEN ROY, ELLISMAN, MARK H · 1989 to 2017
$5.8M
DYNAMICS OF SIGNAL TRANSDUCTION IN NEURONSR37NS027177 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI TSIEN, ROGER Y · 2007 to 2013
$4.8M
Bl-1: A regulator of cell death during ER-stressF32NS047855 · NINDS · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI XU, CHUNYAN · 2004 to 2006
$116k
New Strategy for Development of Novel FRET-based sensorsF32GM067488 · NIGMS · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI PALMER, AMY E · 2003 to 2004
$89k
NIGMS NIH HHS F32-GM067488NINDS NIH HHS F32-NS047855NINDS NIH HHS NS27177
6 · The paper itself

Abstract

BI-1 (Bax inhibitor-1) is an evolutionarily conserved multitransmembrane protein that resides in the endoplasmic reticulum (ER) and that has documented cytoprotective functions in both animals and plants. Recent studies indicate that BI-1 shares in common with Bcl-2/Bax family proteins the ability to regulate the amounts of Ca(2+) that can be released from the ER by agents, such as the ER-Ca(2+)-ATPase (SERCA) inhibitor thapsigargin (TG). Using an ER-targeted, Ca(2+) indicator (cameleon), with characteristics optimized for measuring ER Ca(2+) ([Ca(2+)](er)), we studied the effects of BI-1 on [Ca(2+)](er) in resting and TG-treated cells. Similar to cells overexpressing antiapoptotic Bcl-2 or Bcl-X(L), overexpression of BI-1 resulted in lower resting [Ca(2+)](er), with concomitantly less Ca(2+) released into the cytosol upon stimulation by TG and with a higher rate of Ca(2+) leakage from the ER. Co-expression of SERCA restored levels of [Ca(2+)](er) to normal, showing opposing actions of the ER-Ca(2+)ATPase and BI-1 on ER Ca(2+) homeostasis. Conversely, cells with deficient BI-1 have increased [Ca(2+)](er), and release more Ca(2+) into the cytosol when challenged with TG. In BI-1-deficient cells, Bcl-X(L) fails to reduce [Ca(2+)](er), indicating that BI-1 functions downstream of Bcl-X(L). In bax(-/-)bak(-/-) double knock-out cells, both BI-1 and Bcl-X(L) retained their ability to reduce [Ca(2+)](er), suggesting that BI-1 and Bcl-X(L) operate downstream of or parallel to Bax/Bak. The findings reveal a hierarchy of functional interactions of BI-1 with Bcl-2/Bax family proteins in regulating ER Ca(2+) homeostasis.

Indexed as

Gene Expression RegulationAnimalsApoptosisApoptosis Regulatory Proteinsbcl-2-Associated X Proteinbcl-2 Homologous Antagonist-Killer Proteinbcl-X ProteinCalciumEndoplasmic ReticulumFibroblastsHeLa CellsHumansMembrane ProteinsMiceProto-Oncogene Proteins c-bcl-2Apoptosis Regulatory Proteinsbcl-2-Associated X Proteinbcl-2 Homologous Antagonist-Killer Proteinbcl-X ProteinCalciumMembrane ProteinsProto-Oncogene Proteins c-bcl-2TMBIM6 protein, humanTmbim6 protein, mouse

Identifiers

PMID18299329
PMCPMC2431046
OpenAlexW2014294890

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.