Evidence map›Paper›PMID 25489088›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Preassociated apocalmodulin mediates Ca2+-dependent sensitization of activation and inactivation of TMEM16A/16B Ca2+-gated Cl- channels.

Tingting Yang, Wayne A Hendrickson, Henry M Colecraft

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

26 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. CaMolecules and cells · 2021
    Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Allosteric modulation of alternatively spliced CaProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Review
  13. Article
  14. Molecular basis of PIPNature communications · 2019
    Article
  15. Dual CaCommunications biology · 2019
    Article
  16. Article
  17. Article
  18. Expression and Purification of Mammalian Bestrophin Ion Channels.Journal of visualized experiments : JoVE · 2018
    Article
  19. CaInternational journal of molecular sciences · 2018
    Review
  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

3 authors at 1 institution in 1 country.

Tingting YangDepartments of Biochemistry and Molecular Biophysics and wayne@xtl.cumc.columbia.edu ty2190@columbia.edu hc2405@columbia.edu.
Wayne A HendricksonDepartments of Biochemistry and Molecular Biophysics and Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032 wayne@xtl.cumc.columbia.edu ty2190@columbia.edu hc2405@columbia.edu.
Henry M ColecraftPhysiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032 wayne@xtl.cumc.columbia.edu ty2190@columbia.edu hc2405@columbia.edu.
Columbia University · US

Funding

Molecular Determinants of L-type Calcium Channel GatingR01HL069911 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI COLECRAFT, HENRY M. · 2002 to 2011
$3.3M
NHLBI NIH HHS R01 HL069911
6 · The paper itself

Abstract

Ca(2+)-activated chloride currents carried via transmembrane proteins TMEM16A and TMEM16B regulate diverse processes including mucus secretion, neuronal excitability, smooth muscle contraction, olfactory signal transduction, and cell proliferation. Understanding how TMEM16A/16B are regulated by Ca(2+) is critical for defining their (patho)/physiological roles and for rationally targeting them therapeutically. Here, using a bioengineering approach--channel inactivation induced by membrane-tethering of an associated protein (ChIMP)--we discovered that Ca(2+)-free calmodulin (apoCaM) is preassociated with TMEM16A/16B channel complexes. The resident apoCaM mediates two distinct Ca(2+)-dependent effects on TMEM16A, as revealed by expression of dominant-negative CaM1234. These effects are Ca(2+)-dependent sensitization of activation (CDSA) and Ca(2+)-dependent inactivation (CDI). CDI and CDSA are independently mediated by the N and C lobes of CaM, respectively. TMEM16A alternative splicing provides a mechanism for tuning apoCaM effects. Channels lacking splice segment b selectively lost CDI, and segment a is necessary for apoCaM preassociation with TMEM16A. The results reveal multidimensional regulation of TMEM16A/16B by preassociated apoCaM and introduce ChIMP as a versatile tool to probe the macromolecular complex and function of Ca(2+)-activated chloride channels.

Indexed as

Anoctamin-1AnoctaminsCalciumCalmodulinChloride ChannelsHumansIon Channel GatingMembrane ProteinsNeoplasm ProteinsRNA SplicingANO1 protein, humanANO2 protein, humanAnoctamin-1AnoctaminsCalciumCalmodulinChloride ChannelsMembrane ProteinsNeoplasm Proteinsanoctamin1calcium-activated chloride channelcalmodulinTMEM16A

Identifiers

PMID25489088
PMCPMC4280629
OpenAlexW2051113022

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.