Evidence map›Paper›PMID 14555715›Full record

ArticleThe Journal of physiology2003

Buffer kinetics shape the spatiotemporal patterns of IP3-evoked Ca2+ signals.

Sheila L Dargan, Ian Parker

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

74 citing papers in PubMed, 144 citations in OpenAlex.

  1. From IP3RPEP6 Inhibition of IPCellular and molecular life sciences : CMLS · 2025
    Review
  2. Review
  3. ER and SOCE CaCell calcium · 2024
    Article
  4. ER and SOCE CabioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Review
  7. Modeling IPBiophysical journal · 2023
    Article
  8. Computational investigation of IPScientific reports · 2023
    Article
  9. Article
  10. Article
  11. CaCell calcium · 2022
    Article
  12. Article
  13. Article
  14. Termination of CaCell calcium · 2021
    Article
  15. IPeLife · 2020
    Article
  16. Article
  17. Article
  18. Spatial-temporal patterning of CaSeminars in cell & developmental biology · 2019
    Review
  19. Article
  20. Changes in CaFrontiers in physiology · 2019
    Article

14 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

2 authors at 1 institution in 1 country.

Sheila L DarganDepartment of Neurobiology and Behavior, University of California Irvine, CA 92697-4550, USA. sdargan@uci.edu
Ian Parker
University of California, Irvine · US

Funding

Elementary Events of Intracellular Calcium SignalingR37GM048071 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI PARKER, IAN · 2011 to 2020
$5.3M
SPATIAL AND TEMPORAL ASPECTS OF INSP3 SIGNALLINGR01GM048071 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI PARKER, IAN · 1992 to 2010
$3.9M
COMPREHENSIVE ANALYSIS OF GENE FUNCTIONR43GM058329 · NIGMS · ACACIA BIOSCIENCES, INC. · PI DIMSTER-DENK, DAGO F · 1998 to 1998
–
NIGMS NIH HHS GM48071NIGMS NIH HHS GM58329NIGMS NIH HHS R01 GM048071NIGMS NIH HHS R37 GM048071
6 · The paper itself

Abstract

Ca2+ liberation through inositol 1,4,5-trisphosphate receptors (IP3Rs) plays a universal role in cell regulation, and specificity of cell signalling is achieved through the spatiotemporal patterning of Ca2+ signals. IP3Rs display Ca2+-induced Ca2+ release (CICR), but are grouped in clusters so that regenerative Ca2+ signals may remain localized to individual clusters, or propagate globally between clusters by successive cycles of Ca2+ diffusion and CICR. We used confocal microscopy and photoreleased IP3 in Xenopus oocytes to study how these properties are modulated by mobile cytosolic Ca2+ buffers. EGTA (a buffer with slow 'on-rate') speeded Ca2+ signals and 'balkanized' Ca2+ waves by dissociating them into local signals. In contrast, BAPTA (a fast buffer with similar affinity) slowed Ca2+ responses and promoted 'globalization' of spatially uniform Ca2+ signals. These actions are likely to arise through differential effects on Ca2+ feedback within and between IP3R clusters, because Ca2+ signals evoked by influx through voltage-gated channels were little affected. We propose that cell-specific expression of Ca2+-binding proteins with distinct kinetics may shape the time course and spatial distribution of IP3-evoked Ca2+ signals for specific physiological roles.

Indexed as

AnimalsBuffersCalciumCalcium ChannelsCalcium SignalingCytosolEgtazic AcidInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsKineticsMicroscopy, ConfocalOocytesReceptors, Cytoplasmic and NuclearXenopus laevisXenopus Proteins1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acidBuffersCalciumCalcium ChannelsEgtazic AcidInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsReceptors, Cytoplasmic and NuclearXenopus Proteins

Identifiers

PMID14555715
PMCPMC2343635
OpenAlexW2126917206

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.