Evidence map›Paper›PMID 11842144›Full record

ArticlePlant physiology2002

Electrophysiological analysis of cloned cyclic nucleotide-gated ion channels.

Qiang Leng, Richard W Mercier, Bao-Guang Hua, Hillel Fromm, Gerald A Berkowitz

Abstract read
In one paragraph

Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing 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

72 citing papers in PubMed.

  1. Review
  2. Lithium in plants.The New phytologist · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Rice NaFrontiers in plant science · 2024
    Article
  7. Review
  8. Article
  9. CaThe EMBO journal · 2022
    Review
  10. Review
  11. Moonlighting Proteins Shine New Light on Molecular Signaling Niches.International journal of molecular sciences · 2021
    Review
  12. The Complex Story of Plant Cyclic Nucleotide-Gated Channels.International journal of molecular sciences · 2021
    Review
  13. Article
  14. Article
  15. The CaFrontiers in plant science · 2021
    Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. MgInternational journal of molecular sciences · 2020
    Article

12 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

5 authors.

Qiang LengDepartment of Plant Science, University of Connecticut, Storrs, CT 06269-4067, USA.
Richard W Mercier
Bao-Guang Hua
Hillel Fromm
Gerald A Berkowitz

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electrophysiological studies were conducted on the cloned plant cyclic nucleotide-gated ion channels AtCNGC2 and AtCNGC1 from Arabidopsis, and NtCBP4 from tobacco (Nicotiana tobacum). The nucleotide coding sequences for these proteins were expressed in Xenopus laevis oocytes or HEK 293 cells. Channel characteristics were evaluated using voltage clamp analysis of currents in the presence of cAMP. AtCNGC2 was demonstrated to conduct K(+) and other monovalent cations, but exclude Na(+); this conductivity profile is unique for any ion channel not possessing the amino acid sequence found in the selectivity filter of K(+)-selective ion channels. Application of cAMP evoked currents in membrane patches of oocytes injected with AtCNGC2 cRNA. Direct activation of the channel by cyclic nucleotide, demonstrated by application of cyclic nucleotide to patches of membranes expressing such channels, is a hallmark characteristic of this ion channel family. Voltage clamp studies (two-electrode configuration) demonstrated that AtCNGC1 and NtCBP4 are also cyclic nucleotide-gated channels. Addition of a lipophilic analog of cAMP to the perfusion bath of oocytes injected with NtCBP4 and AtCNGC1 cRNAs induced inward rectified, noninactivating K(+) currents.

Indexed as

Amino Acid SequenceAnimalsArabidopsisCalmodulin-Binding ProteinsCell LineCloning, MolecularCyclic AMPCyclic Nucleotide-Gated Cation ChannelsGene ExpressionHumansIon ChannelsIon TransportLigandsMembrane PotentialsMolecular Sequence DataNicotianaCalmodulin-Binding ProteinsCBP4 protein, Nicotiana tabacumCyclic AMPCyclic Nucleotide-Gated Cation ChannelsIon ChannelsLigandsPlant ProteinsPotassiumRNA, ComplementarySodium

Identifiers

PMID11842144
PMCPMC148903

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.