Evidence map›Paper›PMID 9817204›Full record

ArticleNature1998

Type III InsP3 receptor channel stays open in the presence of increased calcium.

R E Hagar, A D Burgstahler, M H Nathanson, B E Ehrlich

Open access · greenAbstract read
In one paragraph

Article in Nature, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed
9.1field-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

99 citing papers in PubMed, 247 citations in OpenAlex.

  1. Article
  2. Review
  3. Impact of static magnetic field exposure onJournal of advanced veterinary and animal research · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Calcium signals that determine vascular resistance.Wiley interdisciplinary reviews. Systems biology and medicine · 2019
    Review
  10. Article
  11. Review
  12. All three IPScience signaling · 2018
    Article
  13. Calcium Signaling in Cholangiocytes: Methods, Mechanisms, and Effects.International journal of molecular sciences · 2018
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Calcium signaling in the liver.Comprehensive Physiology · 2013
    Review

39 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

4 authors at 2 institutions in 1 country.

R E HagarDepartment of Physiology, University of Connecticut Health Center, Farmington 06030, USA. rob@hermen.med.yale.edu
A D Burgstahler
M H Nathanson
B E Ehrlich
Yale University · USUConn Health · US

Funding

CALCIUM WAVES IN HEPATOCYTES--MECHANISMS AND EFFECTSR01DK045710 · NIDDK · YALE UNIVERSITY · PI NATHANSON, MICHAEL H · 1999 to 2014
$5.7M
Regulation of cholangiocytes by InsP3 receptor isoformsR01DK061747 · NIDDK · YALE UNIVERSITY · PI EHRLICH, BARBARA E., NATHANSON, MICHAEL H · 2003 to 2012
$3.4M
NIDDK NIH HHS R01 DK045710NIDDK NIH HHS R01 DK061747
6 · The paper itself

Abstract

The inositol 1,4,5-trisphosphate receptor (InsP3R) is the main calcium(Ca2+) release channel in most tissues. Three isoforms have been identified, but only types I and II InsP3R have been characterized. Here we examine the functional properties of the type III InsP3R because this receptor is restricted to the trigger zone from which Ca2+ waves originate and it has distinctive InsP3-binding properties. We find that type III InsP3R forms Ca2+ channels with single-channel currents that are similar to those of type I InsP3R; however, the open probability of type III InsP3R isoform increases monotonically with increased cytoplasmic Ca2+ concentration, whereas the type I isoform has a bell-shaped dependence on cytoplasmic Ca2+. The properties of type III InsP3R provide positive feedback as Ca2+ is released; the lack of negative feedback allows complete Ca2+ release from intracellular stores. Thus, activation of type III InsP3R in cells that express only this isoform results in a single transient, but global, increase in the concentration of cytosolic Ca2+. The bell-shaped Ca2+-dependence curve of type I InsP3R is ideal for supporting Ca2+ oscillations, whereas the properties of type III InsP3R are better suited to signal initiation.

Indexed as

Adenosine TriphosphateAllosteric RegulationAnimalsCalciumCalcium ChannelsCalcium SignalingCell LineCytoplasmDogsEndoplasmic ReticulumInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsRatsReceptors, Cytoplasmic and NuclearAdenosine TriphosphateCalciumCalcium ChannelsInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsReceptors, Cytoplasmic and Nuclear

Identifiers

PMID9817204
PMCPMC2825878
OpenAlexW1661761832

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.