Evidence map›Paper›PMID 11673479›Full record

ArticleThe Journal of cell biology2001

Mutations in the cytoplasmic domain of P0 reveal a role for PKC-mediated phosphorylation in adhesion and myelination.

W Xu, M Shy, J Kamholz, L Elferink, G Xu, J Lilien, J Balsamo

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

30 citing papers in PubMed, 87 citations in OpenAlex.

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  8. Mechanisms and Treatments in Demyelinating CMT.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021
    Review
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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.

W XuDepartment of Neurology and the Center for Molecular Medicine and Genetics, Wayne State University Detroit, MI 48202, USA.
M Shy
J Kamholz
L Elferink
G Xu
J Lilien
J Balsamo
University of Iowa · USWayne State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations in P0 (MPZ), the major myelin protein of the peripheral nervous system, cause the inherited demyelinating neuropathy Charcot-Marie-Tooth disease type 1B. P0 is a member of the immunoglobulin superfamily and functions as a homophilic adhesion molecule. We now show that point mutations in the cytoplasmic domain that modify a PKC target motif (RSTK) or an adjacent serine residue abolish P0 adhesion function and can cause peripheral neuropathy in humans. Consistent with these data, PKCalpha along with the PKC binding protein RACK1 are immunoprecipitated with wild-type P0, and inhibition of PKC activity abolishes P0-mediated adhesion. Point mutations in the RSTK target site that abolish adhesion do not alter the association of PKC with P0; however, deletion of a 14 amino acid region, which includes the RSTK motif, does abolish the association. Thus, the interaction of PKCalpha with the cytoplasmic domain of P0 is independent of specific target residues but is dependent on a nearby sequence. We conclude that PKC-mediated phosphorylation of specific residues within the cytoplasmic domain of P0 is necessary for P0-mediated adhesion, and alteration of this process can cause demyelinating neuropathy in humans.

Indexed as

Amino AcidsAmino Acid SequenceAnimalsBinding SitesCell AdhesionCharcot-Marie-Tooth DiseaseCytoplasmDemyelinating DiseasesHeLa CellsHumansIsoenzymesL CellsMiceMolecular Sequence DataMyelin P0 ProteinPeptidesAmino AcidsIsoenzymesMyelin P0 Proteinpeptide IPeptidesPRKCA protein, humanPrkca protein, mouseProtein Kinase CProtein Kinase C-alphaReceptors for Activated C Kinase

Identifiers

PMID11673479
PMCPMC2150845
OpenAlexW2113827981

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.