Cited by 255Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersIon channel regulation and function

CACNA1H mutations in autism spectrum disorders

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Splawski, Igor, Yoo, Dana S., Stotz, Stephanie C., Cherry, Allison, Clapham, David E., Keating, Mark T.·2006·Journal of Biological Chemistry

Abstract

Autism spectrum disorders (ASD) are neurodevelopmental conditions characterized by impaired social interaction, communication skills, and restricted and repetitive behavior. The genetic causes for autism are largely unknown. Previous studies implicate CACNA1C (L-type Ca(V)1.2) calcium channel mutations in a disorder associated with autism (Timothy syndrome). Here, we identify missense mutations in the calcium channel gene CACNA1H (T-type Ca(V)3.2) in 6 of 461 individuals with ASD. These mutations are located in conserved and functionally relevant domains and are absent in 480 ethnically matched controls (p = 0.014, Fisher's exact test). Non-segregation within the pedigrees between the mutations and the ASD phenotype clearly suggest that the mutations alone are not responsible for the condition. However, functional analysis shows that all these mutations significantly reduce Ca(V)3.2 channel activity and thus could affect neuronal function and potentially brain development. We conclude that the identified mutations could contribute to the development of the ASD phenotype.

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  • ASD children have altered gut microbiota profiles compared with NT children, although some studies report no significant difference.

    “In the literature it has been reported that ASD children have altered gut microbiota profiles compared with NT children, although in some studies, no significant difference has been reported [19,20]”

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  1. Joksovic, P., Nelson, M., Jevtovic-Todorovic, V., Patel, M., Perez-Reyes, E., Campbell, K., Chen, C. C., and Todorovic, S. (2006) J. Physiol., in press 10. Khosravani, H., Altier, C., Simms, B., Hamming, K. S., Snutch, T. P., Mezeyova, J., McRory, J. E., and Zamponi, G. W. (2004) J. Biol. Chem. 279, 9681-9684
  2. Splawski, I., Timothy, K. W., Decher, N., Kumar, P., Sachse, F. B., Beggs, A. H., Sanguinetti, M. C., and Keating, M. T. (2005) Proc. Natl. Acad. Sci.

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Authors
Splawski, I., Yoo, D. S., Stotz, S. C., Cherry, A., Clapham, D. E., & Keating, M. T.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Stotz, Stephanie C.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2006-08
Volume
281
Issue
31
Pages
22085-22091
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2003315040
Cited by
255
References
27
Citations by year
2026: 4 · 2025: 10 · 2024: 10 · 2023: 12 · 2022: 16 · 2021: 11 · 2020: 13 · 2019: 15 · 2018: 15 · 2017: 9 · 2016: 9 · 2015: 16 · 2014: 19 · 2013: 19 · 2012: 15
FWCI
5.73
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Charles H. Hood Foundation
  • Fondation pour la Recherche Médicale
  • National Institutes of Health
  • Canadian Institutes of Health Research
  • National Heart, Lung, and Blood Institute (HL46401, HL-52338, P50HL052338, T32HL007572)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P30HD018655)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
Keywords
autism spectrum disorder, CACNA1H, T-type calcium channels, Cav3.2, missense mutations, Timothy syndrome, L-type calcium channels, calcium channel activity, genetic susceptibility, brain development
MeSH terms
Autistic Disorder, DNA Mutational Analysis, Electrophysiology, Family Health, Humans, Kinetics, Pedigree, Case-Control Studies, Conserved Sequence, Molecular Epidemiology, Mutation, Missense, Calcium Channels, T-Type

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