Evidence map›Paper›PMID 11285231›Full record

ArticleThe EMBO journal2001

Ca(2+)-sensor region of IP(3) receptor controls intracellular Ca(2+) signaling.

T Miyakawa, A Mizushima, K Hirose, T Yamazawa, I Bezprozvanny, T Kurosaki, M Iino

Abstract read
In one paragraph

Article in The EMBO journal, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

54 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Calcium and arrhythmogenesis.Physiological reviews · 2007
    Pooled it
  2. Understanding IPCell calcium · 2023
    Review
  3. Article
  4. Article
  5. Functional determination of calcium-binding sites required for the activation of inositol 1,4,5-trisphosphate receptors.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Article
  7. Structure and Function of IPCold Spring Harbor perspectives in biology · 2019
    Review
  8. Article
  9. Article
  10. Mitochondrial CaJournal of the Royal Society, Interface · 2017
    Review
  11. IPCellular and molecular life sciences : CMLS · 2017
    Review
  12. Structure of IPCurrent opinion in structural biology · 2017
    Review
  13. Article
  14. Article
  15. Article
  16. IPProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  17. Article
  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

7 authors.

T MiyakawaDepartment of Pharmacology, Graduate School of Medicine, The University of Tokyo, CREST, Japan.
A Mizushima
K Hirose
T Yamazawa
I Bezprozvanny
T Kurosaki
M Iino

Funding

STRUCTURE/FUNCTION OF INOSITOL TRISPHOSPHATE RECEPTORR01NS038082 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI BEZPROZVANNY, ILYA B · 1999 to 2009
$2.6M
NINDS NIH HHS R01 NS038082NINDS NIH HHS R01 NS38082
6 · The paper itself

Abstract

Many important cell functions are controlled by Ca(2+) release from intracellular stores via the inositol 1,4,5-trisphosphate receptor (IP(3)R), which requires both IP(3) and Ca(2+) for its activity. Due to the Ca(2+) requirement, the IP(3)R and the cytoplasmic Ca(2+) concentration form a positive feedback loop, which has been assumed to confer regenerativity on the IP(3)-induced Ca(2+) release and to play an important role in the generation of spatiotemporal patterns of Ca(2+) signals such as Ca(2+) waves and oscillations. Here we show that glutamate 2100 of rat type 1 IP(3)R (IP(3)R1) is a key residue for the Ca(2+) requirement. Substitution of this residue by aspartate (E2100D) results in a 10-fold decrease in the Ca(2+) sensitivity without other effects on the properties of the IP(3)R1. Agonist-induced Ca(2+) responses are greatly diminished in cells expressing the E2100D mutant IP(3)R1, particularly the rate of rise of initial Ca(2+) spike is markedly reduced and the subsequent Ca(2+) oscillations are abolished. These results demonstrate that the Ca(2+) sensitivity of the IP(3)R is functionally indispensable for the determination of Ca(2+) signaling patterns.

Indexed as

Adenosine TriphosphateAmino Acid SequenceAnimalsBinding SitesCalciumCalcium ChannelsCalcium SignalingCell MembraneChickensInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsIntracellular FluidMicroscopy, FluorescenceMolecular Sequence DataMutagenesis, Site-DirectedRatsAdenosine TriphosphateCalciumCalcium ChannelsInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsReceptors, Cytoplasmic and Nuclear

Identifiers

PMID11285231
PMCPMC145472

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.