Evidence map›Paper›PMID 42443397›Full record

ArticleCommunications biology2026

Branching of O-mannose glycans regulates node of Ranvier organization and saltatory conduction.

Shu Tomita, Taichi Nakaishi, Toshiyuki Ishii, Kazuya Ono, Honoka Fujimori, Misuzu Hashimoto, Shiho Ohno, Yoshiki Yamaguchi, Masamitsu Shimazawa, Miyako Nakano and 2 more

Abstract read
In one paragraph

Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

12 authors.

Shu Tomita *Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan.
Taichi Nakaishi *Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan.
Toshiyuki IshiiDepartment of Physiology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan.
Kazuya OnoGraduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan.
Honoka FujimoriMolecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan.ORCID 0009-0006-4385-6169
Misuzu HashimotoGraduate School of Natural Science and Technology, Gifu University, Gifu, Japan.
Shiho OhnoDivision of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan.
Yoshiki YamaguchiDivision of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan.ORCID 0000-0003-0100-5439
Masamitsu ShimazawaMolecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan.
Miyako NakanoGraduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan.
Daisuke KatoDepartment of Physiology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan. d-kato@nms.ac.jp.ORCID 0000-0002-8168-8841
Yasuhiko KizukaGraduate School of Natural Science and Technology, Gifu University, Gifu, Japan. kizuka.yasuhiko.k8@f.gifu-u.ac.jp.ORCID 0000-0002-3181-9743

Funding

Japan Agency for Medical Research and Development (AMED) JP23gm1410011MEXT | Japan Science and Technology Agency (JST) JPMJFR2145MEXT | Japan Science and Technology Agency (JST) JPMJFR215ZMEXT | Japan Society for the Promotion of Science (JSPS) JP23K06302MEXT | Japan Society for the Promotion of Science (JSPS) JPJS00420230009MEXT | Japan Society for the Promotion of Science (JSPS) JPJSCCA202000007Ministry of Education, Culture, Sports, Science and Technology (MEXT) Human Glycome Atlas Project
6 · The paper itself

Abstract

The myelin sheath of axons is organized into domain structures with nodes of Ranvier that facilitate saltatory conduction. Here, we show that a brain-specific glycosyltransferase, MGAT5B that catalyzes β1,6-GlcNAc branching of an O-mannose (Man) glycan, is required for node of Ranvier integrity. Mgat5b knockout (KO) mice displayed broadening of nodes in brain white matter. Consistently, electrophysiological analysis demonstrated a significant delay and variable axonal conduction in Mgat5b KO mice, indicating the importance of branched O-Man glycans in node morphology and functions. Biochemical and glycoproteomic analyses demonstrated that MGAT5B modifies the glycans of a key node-organizing glycoprotein, neurofascin 186 (NF186), and that interaction between NF186 and Contactin 1 is negatively regulated by branched O-Man glycans. Finally, neuron-specific restoration of MGAT5B in KO mice rescued these nodal defects, indicating a cell-autonomous role of MGAT5B in node organization. Our findings highlight a glycan-mediated mechanism for the maintenance of node structure and function.

Indexed as

MannoseN-AcetylglucosaminyltransferasesPolysaccharidesRanvier's NodesAnimalsCell Adhesion MoleculesMiceMice, KnockoutNerve Growth FactorsCell Adhesion MoleculesMannoseN-AcetylglucosaminyltransferasesNerve Growth FactorsNfasc protein, mousePolysaccharides

Identifiers

PMID42443397
PMCPMC13365513

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.