Evidence map›Paper›PMID 16150713›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2005

Structural role of countertransport revealed in Ca(2+) pump crystal structure in the absence of Ca(2+).

Koji Obara, Naoyuki Miyashita, Cheng Xu, Itaru Toyoshima, Yuji Sugita, Giuseppe Inesi, Chikashi Toyoshima

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed
–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

114 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. The molecular determinants of calcium ATPase inhibition by curcuminoids.Biochimica et biophysica acta. Biomembranes · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. The energy conversion in active transport of ions.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  10. Article
  11. Targeting oncogenic Notch signaling with SERCA inhibitors.Journal of hematology & oncology · 2021
    Review
  12. Review
  13. Article
  14. What ATP binding does to the CaProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  15. Review
  16. Article
  17. Primary Active CaCold Spring Harbor perspectives in biology · 2020
    Review
  18. Article
  19. Article
  20. Review

54 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

7 authors.

Koji ObaraInstitute of Molecular and Cellular Biosciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan.
Naoyuki Miyashita
Cheng Xu
Itaru Toyoshima
Yuji Sugita
Giuseppe Inesi
Chikashi Toyoshima

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ca(2+)-ATPase of sarcoplasmic reticulum is an ATP-powered Ca(2+) pump but also a H(+) pump in the opposite direction with no demonstrated functional role. Here, we report a 2.4-A-resolution crystal structure of the Ca(2+)-ATPase in the absence of Ca(2+) stabilized by two inhibitors, dibutyldihydroxybenzene, which bridges two transmembrane helices, and thapsigargin, also bound in the membrane region. Now visualized are water and several phospholipid molecules, one of which occupies a cleft between two transmembrane helices. Atomic models of the Ca(2+) binding sites with explicit hydrogens derived by continuum electrostatic calculations show how water and protons fill the space and compensate charge imbalance created by Ca(2+)-release. They suggest that H(+) countertransport is a consequence of a requirement for maintaining structural integrity of the empty Ca(2+)-binding sites. For this reason, cation countertransport is probably mandatory for all P-type ATPases and possibly accompanies transport of water as well.

Indexed as

Models, MolecularProtonsAnimalsBiological Transport, ActiveBiophysical PhenomenaBiophysicsCalcium-Transporting ATPasesChickensChlorocebus aethiopsCloning, MolecularCOS CellsCrystallographyIon TransportMutagenesis, Site-DirectedPhenolSarcoplasmic Reticulum Calcium-Transporting ATPasesCalcium-Transporting ATPasesPhenolProtonsSarcoplasmic Reticulum Calcium-Transporting ATPasesThapsigarginWater

Identifiers

PMID16150713
PMCPMC1253571

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.