Cited by 33Genetics and Neurodevelopmental DisordersNeuroscience and Neuropharmacology ResearchAutism Spectrum Disorder Research

Autism-associated SHANK3 missense point mutations impact conformational fluctuations and protein turnover at synapses

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Bucher, Michael, Niebling, Stephan, Han, Yuhao, Molodenskiy, Dmitry, Hassani Nia, Fatemeh, Kreienkamp, Hans-Jürgen, Svergun, Dmitri, Kim, Eunjoon +3 more·2021·eLife

Published version of a preprint

Abstract

Members of the SH3- and ankyrin repeat (SHANK) protein family are considered as master scaffolds of the postsynaptic density of glutamatergic synapses. Several missense mutations within the canonical SHANK3 isoform have been proposed as causative for the development of autism spectrum disorders (ASDs). However, there is a surprising paucity of data linking missense mutation-induced changes in protein structure and dynamics to the occurrence of ASD-related synaptic phenotypes. In this proof-of-principle study, we focus on two ASD-associated point mutations, both located within the same domain of SHANK3 and demonstrate that both mutant proteins indeed show distinct changes in secondary and tertiary structure as well as higher conformational fluctuations. Local and distal structural disturbances result in altered synaptic targeting and changes of protein turnover at synaptic sites in rat primary hippocampal neurons.

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Crossref · 10.7554/elife.66165

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  • Disruption of SHANK family proteins alters PSD architecture, receptor localization, and subsequent signaling, leading to impaired synaptic transmission and plasticity that recapitulates autism-related phenotypes in animal models.

    “Disruption of SHANK family proteins alters PSD architecture, receptor localization, and subsequent signaling (Bucher et al., 2021), leading to impaired synaptic transmission and plasticity that recapitulates autism-related phenotypes in animal models (Eltokhi et al., 2021; Jung and Park, 2022).”

    From Biological hierarchy from genotype to phenotype in syndromic and non-syndromic autism spectrum disorder (2026) · cites this paper as Bucher et al., 2021

    Bucher et al. describe SHANK3 as a PSD organizer associated with glutamate receptors (Introduction, page unavailable), and discuss how perturbed SHANK3 could change PSD protein interactions and signaling (Discussion, page unavailable). Their Results report altered localization of mutant SHANK3, but the passages do not establish altered receptor localization. The animal-model portion of the sentence is attributed to other citations, not Bucher et al. (LLM, conf=0.85)

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Authors
Bucher, M., Niebling, S., Han, Y., Molodenskiy, D., Hassani Nia, F., Kreienkamp, H.-J., Svergun, D., Kim, E., Kostyukova, A. S., Kreutz, M. R., & Mikhaylova, M.
Affiliations
  • Humboldt-Universität zu Berlin (DE)
  • European Molecular Biology Laboratory (DE)
  • Leibniz Institute of Virology (LIV) (DE)
  • Deutsches Elektronen-Synchrotron DESY (DE)
  • Institute of Human Genetics, Center for Obstetrics and Pediatrics, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
  • University Medical Center Hamburg-Eppendorf (DE)
  • Korea Advanced Institute of Science and Technology (KR)
  • German Center for Neurodegenerative Diseases (DE)
Corresponding author
  • Kreutz, Michael R
  • Mikhaylova, Marina
Venue
eLife
Published
2021-05-04
Volume
10
ISSN
2050-084X (ISSN-L)
OpenAlex
W3157356791
Cited by
33
References
93
Citations by year
2026: 5 · 2025: 3 · 2024: 11 · 2023: 4 · 2022: 8 · 2021: 2
FWCI
3.53
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Informationszentrum Lebenswissenschaften (ZB MED) (submittedVersion, cc-by)
  • Desy Publications Database (Deutsches Elektronen-Synchrotron DESY) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • DZNE Pub (submittedVersion, other-oa)
  • DESY Publication Database (PUBDB) (Deutsches Elektronen-Synchrotron)
Funders
  • Deutsche Forschungsgemeinschaft (MI1923/1-2, FOR2419 TP2, EXC-2049-390688087, FOR2419 TP3, CRC 1436 Project A02, RTG 2413 SynAge TP3 and TP4, Kr1321/9-1)
  • Leibniz-Gemeinschaft (Neurotranslation)
  • Deutscher Akademischer Austauschdienst (Research Stays for University Academics and Scientists Award)
  • University of Hamburg (LFF-FV76)
  • Bundesministerium für Bildung und Forschung (16QK10A (SAS-BSOFT))
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
SHANK3, autism spectrum disorder, missense mutations, postsynaptic density, synaptic scaffolds, protein conformational dynamics, protein turnover, synaptic targeting, glutamatergic synapses, hippocampal neurons, protein structure
MeSH terms
Proof of Concept Study, Animals, Autistic Disorder, Cells, Cultured, Hippocampus, Nerve Tissue Proteins, Neurons, Protein Conformation, Synapses, Point Mutation, Mutation, Missense, Mutant Proteins, Rats, Molecular Dynamics Simulation

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