Evidence map›Paper›PMID 19129176›Full record

ArticleThe Journal of biological chemistry2009

Solution structure of the NaV1.2 C-terminal EF-hand domain.

Vesselin Z Miloushev, Joshua A Levine, Mark A Arbing, John F Hunt, Geoffrey S Pitt, Arthur G Palmer

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 47 citations in OpenAlex.

  1. Identification ofMolecules (Basel, Switzerland) · 2025
    Article
  2. Review
  3. Crystal structures of CaProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  4. Article
  5. Differential calcium sensitivity in NaThe Journal of physiology · 2017
    Article
  6. Article
  7. Review
  8. Heterologous expression of NaV1.9 chimeras in various cell systems.Pflugers Archiv : European journal of physiology · 2015
    Article
  9. Novel SCN9A mutations underlying extreme pain phenotypes: unexpected electrophysiological and clinical phenotype correlations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. The number and location of EF hand motifs dictates the calcium dependence of polycystin-2 function.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2014
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Crystallographic basis for calcium regulation of sodium channels.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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

6 authors at 2 institutions in 1 country.

Vesselin Z MiloushevDepartment of Biochemistry and Molecular Biophysics, Columbia University, New York, New York 10032-3702, USA.
Joshua A Levine
Mark A Arbing
John F Hunt
Geoffrey S Pitt
Arthur G Palmer
Columbia University · USDuke University · US

Funding

Sub-project 9U54GM074958 · NIGMS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI KENNEDY, MICHAEL ALLEN · 2005 to 2009
$56.6M
STRUCTURAL GENOMICS OF EUKARYOTIC MODEL ORGANISMSP50GM062413 · NIGMS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI MONTELIONE, GAETANO T · 2000 to 2004
$33.5M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM007367 · NIGMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI REINER, STEVEN L · 1985 to 2021
$25.1M
PROTEIN MOTIONS IN RECOGNITION, REGULATION AND CATALYSISR01GM059273 · NIGMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI PALMER, ARTHUR G · 1999 to 2018
$5.7M
Calcium regulation and dysregulation of cardiac ion channelsR01HL071165 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI PITT, GEOFFREY S · 2002 to 2017
$5.2M
NHLBI NIH HHS R01 HL071165NHLBI NIH HHS R01 HL71165NIGMS NIH HHS 5T32 GM07367NIGMS NIH HHS P50GM62413NIGMS NIH HHS R01 GM59273NIGMS NIH HHS U54GM074958
6 · The paper itself

Abstract

Voltage-gated sodium channels initiate the rapid upstroke of action potentials in many excitable tissues. Mutations within intracellular C-terminal sequences of specific channels underlie a diverse set of channelopathies, including cardiac arrhythmias and epilepsy syndromes. The three-dimensional structure of the C-terminal residues 1777-1882 of the human NaV1.2 voltage-gated sodium channel has been determined in solution by NMR spectroscopy at pH 7.4 and 290.5 K. The ordered structure extends from residues Leu-1790 to Glu-1868 and is composed of four alpha-helices separated by two short anti-parallel beta-strands; a less well defined helical region extends from residue Ser-1869 to Arg-1882, and a disordered N-terminal region encompasses residues 1777-1789. Although the structure has the overall architecture of a paired EF-hand domain, the NaV1.2 C-terminal domain does not bind Ca2+ through the canonical EF-hand loops, as evidenced by monitoring 1H,15N chemical shifts during aCa2+ titration. Backbone chemical shift resonance assignments and Ca2+ titration also were performed for the NaV1.5 (1773-1878) isoform, demonstrating similar secondary structure architecture and the absence of Ca2+ binding by the EF-hand loops. Clinically significant mutations identified in the C-terminal region of NaV1 sodium channels cluster in the helix I-IV interface and the helix II-III interhelical segment or in helices III and IV of the NaV1.2 (1777-1882) structure.

Indexed as

Action PotentialsArrhythmias, CardiacCalciumEpilepsyHumansIon Channel GatingMutationNAV1.2 Voltage-Gated Sodium ChannelNerve Tissue ProteinsNuclear Magnetic Resonance, BiomolecularProtein BindingProtein Structure, SecondaryProtein Structure, TertiarySodium ChannelsSyndromeCalciumNAV1.2 Voltage-Gated Sodium ChannelNerve Tissue ProteinsSCN2A protein, humanSodium Channels

Identifiers

PMID19129176
PMCPMC2649098
OpenAlexW2028512905

What OpenQuestion holds

Textmetadata
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Registered trials

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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.