Evidence map›Paper›PMID 27940916›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Hierarchical CRMP2 posttranslational modifications control NaV1.7 function.

Erik T Dustrude, Aubin Moutal, Xiaofang Yang, Yuying Wang, May Khanna, Rajesh Khanna

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
7.2field-weighted citation impact, top 2% 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

78 citing papers in PubMed, 131 citations in OpenAlex.

  1. Review
  2. NabioRxiv : the preprint server for biology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Pathology of pain and its implications for therapeutic interventions.Signal transduction and targeted therapy · 2024
    Review
  16. Article
  17. A peptidomimetic modulator of the CaProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  18. The CaScience signaling · 2023
    Article
  19. Identification and targeting of a unique NaProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  20. Review

18 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

6 authors at 1 institution in 1 country.

Erik T DustrudeDepartment of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85742.
Aubin MoutalDepartment of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85742.
Xiaofang YangDepartment of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85742.
Yuying WangDepartment of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85742.
May KhannaDepartment of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85742.
Rajesh KhannaDepartment of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85742; rkhanna@email.arizona.edu.ORCID 0000-0002-9066-2969
University of Arizona · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Voltage-gated sodium channels are crucial determinants of neuronal excitability and signaling. Trafficking of the voltage-gated sodium channel NaV1.7 is dysregulated in neuropathic pain. We identify a trafficking program for NaV1.7 driven by hierarchical interactions with posttranslationally modified versions of the binding partner collapsin response mediator protein 2 (CRMP2). The binding described between CRMP2 and NaV1.7 was enhanced by conjugation of CRMP2 with small ubiquitin-like modifier (SUMO) and further controlled by the phosphorylation status of CRMP2. We determined that CRMP2 SUMOylation is enhanced by prior phosphorylation by cyclin-dependent kinase 5 and antagonized by Fyn phosphorylation. As a consequence of CRMP2 loss of SUMOylation and binding to NaV1.7, the channel displays decreased membrane localization and current density, and reduces neuronal excitability. Preventing CRMP2 SUMOylation with a SUMO-impaired CRMP2-K374A mutant triggered NaV1.7 internalization in a clathrin-dependent manner involving the E3 ubiquitin ligase Nedd4-2 (neural precursor cell expressed developmentally down-regulated protein 4) and endocytosis adaptor proteins Numb and epidermal growth factor receptor pathway substrate 15. Collectively, our work shows that diverse modifications of CRMP2 cross-talk to control NaV1.7 activity and illustrate a general principle for regulation of NaV1.7.

Indexed as

Protein Processing, Post-TranslationalAnimalsCell LineCell MembraneEndocytosisEndosomesHEK293 CellsHumansIntercellular Signaling Peptides and ProteinsMaleNAV1.7 Voltage-Gated Sodium ChannelNerve Tissue ProteinsNeuronsPainPatch-Clamp TechniquesPhosphorylationcollapsin response mediator protein-2Intercellular Signaling Peptides and ProteinsNAV1.7 Voltage-Gated Sodium ChannelNerve Tissue ProteinsSCN9A protein, humanScn9a protein, ratCRMP2NaV1.7 sodium channelphosphorylationSUMOylationtrafficking

Identifiers

PMID27940916
PMCPMC5206544
OpenAlexW2560346424

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.