Evidence map›Paper›PMID 22649224›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Doublecortin (DCX) mediates endocytosis of neurofascin independently of microtubule binding.

Chan Choo Yap, Max Vakulenko, Kamil Kruczek, Bashir Motamedi, Laura Digilio, Judy S Liu, Bettina Winckler

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

25 citing papers in PubMed, 50 citations in OpenAlex.

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  6. Dynein Is Required for Rab7-Dependent Endosome Maturation, Retrograde Dendritic Transport, and Degradation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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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 at 2 institutions in 1 country.

Chan Choo YapDepartment of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA.
Max Vakulenko
Kamil Kruczek
Bashir Motamedi
Laura Digilio
Judy S Liu
Bettina Winckler
University of Virginia · USChildren's National · US

Funding

Targeting Pathways of Axonal Cell Adhesion MoleculesR01GM086913 · NIGMS · UNIVERSITY OF VIRGINIA · PI WINCKLER, BETTINA R · 2009 to 2012
$1.4M
NIGMS NIH HHS R01 GM086913
6 · The paper itself

Abstract

Doublecortin on X chromosome (DCX) is one of two major genetic loci underlying human lissencephaly, a neurodevelopmental disorder with defects in neuronal migration and axon outgrowth. DCX is a microtubule-binding protein, and much work has focused on its microtubule-associated functions. DCX has other reported binding partners, including the cell adhesion molecule neurofascin, but the functional significance of the DCX-neurofascin interaction is not understood. Neurofascin localizes strongly to the axon initial segment in mature neurons, where it plays a role in assembling and maintaining other axon initial segment components. During development, neurofascin likely plays additional roles in axon guidance and in GABAergic synaptogenesis. We show here that DCX can modulate the surface distribution of neurofascin in developing cultured rat neurons and thereby the relative extent of accumulation between the axon initial segment and soma and dendrites. Mechanistically, DCX acts via increasing endocytosis of neurofascin from soma and dendrites. Surprisingly, DCX increases neurofascin endocytosis apparently independently of its microtubule-binding activity. We additionally show that the patient allele DCXG253D still binds microtubules but is deficient in promoting neurofascin endocytosis. We propose that DCX acts as an endocytic adaptor for neurofascin to fine-tune its surface distribution during neuronal development.

Indexed as

AnimalsAnkyrinsCell Adhesion MoleculesCell MembraneCell PolarityCells, CulturedChlorocebus aethiopsDendritesDoublecortin Domain ProteinsDoublecortin ProteinEmbryo, MammalianEndocytosisFemaleGene Expression RegulationGreen Fluorescent ProteinsHippocampusAnk3 protein, ratAnkyrinsCell Adhesion MoleculesDCX protein, humanDcx protein, ratDoublecortin Domain ProteinsDoublecortin ProteinGreen Fluorescent ProteinsLysosomal-Associated Membrane Protein 1Microtubule-Associated ProteinsNerve Growth FactorsNeuropeptidesNfasc protein, ratRNA, Small InterferingSodium Channels

Identifiers

PMID22649224
PMCPMC3372911
OpenAlexW2145733791

What OpenQuestion holds

Textmetadata
LicenceTDM
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.