Cited by 27Genomic variations and chromosomal abnormalitiesGenetics and Neurodevelopmental DisordersSchizophrenia research and treatment

MYT1L: A systematic review of genetic variation encompassing schizophrenia and autism

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Mansfield, Patricia, Constantino, John N., Baldridge, Dustin·2020·American Journal of Medical Genetics Part B Neuropsychiatric Genetics

Abstract

Variations in MYT1L, a gene encoding a transcription factor expressed in the brain, have been associated with autism, intellectual disability, and schizophrenia. Here we provide an updated review of published reports of neuropsychiatric correlates of loss of function and duplication of MYT1L. Of 27 duplications all were partial; 33% were associated exclusively with schizophrenia, and the chromosomal locations of schizophrenia-associated duplications exhibited a distinct difference in pattern-of-location from those associated with autism and/or intellectual disability. Of 51 published heterozygous loss of function variants, all but one were associated with intellectual disability, autism, or both, and one resulted in no neuropsychiatric diagnosis. There were no reports of schizophrenia associated with loss of function variants of MYT1L (Fisher's exact p < .00001, for contrast with all reported duplications). Although the precise function of the various mutations remains unspecified, these data collectively establish the candidacy of MYT1L as a reciprocal mutation, in which schizophrenia may be engendered by partial duplications, typically involving the 3' end of the gene, while developmental disability-notably autism-is associated with both loss of function and partial duplication. Future research on the specific effects of contrasting mutations in MYT1L may provide insight into the causal origins of autism and schizophrenia.

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  1. Karczewski KJ, Francioli LC, Tiao G, Cummings BB, Alföldi J, Wang Q, … MacArthur DG (2019). Variation across 141,456 human exomes and genomes reveals the spectrum of loss-of-function intolerance across human protein-coding genes. BioRxiv, 531210 10.1101/531210 · DOI · Paper page

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Authors
Mansfield, P., Constantino, J. N., & Baldridge, D.
Affiliations
  • Saint Louis University (US)
  • Washington University in St. Louis (US)
Corresponding author
Constantino, John N.
Venue
American Journal of Medical Genetics Part B Neuropsychiatric Genetics
Publisher
Wiley
Published
2020-04-08
Volume
183
Issue
4
Pages
227-233
ISSN
  • 1552-4841 (ISSN-L)
  • 1552-485X
OpenAlex
W3014311564
Cited by
27
References
43
Citations by year
2026: 3 · 2025: 4 · 2024: 5 · 2023: 7 · 2022: 5 · 2021: 3
FWCI
0.53
Type
journal article
Language
en
Open access
Locations
  • American Journal of Medical Genetics Part B Neuropsychiatric Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (U54HD087011)
  • National Heart and Lung Institute (K12HL120002)
  • National Human Genome Research Institute (K08HG010154)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
MYT1L, schizophrenia, autism spectrum disorder, intellectual disability, partial gene duplication, loss-of-function mutations, transcription factors, neuropsychiatric disorders, chromosomal location
MeSH terms
Autistic Disorder, Gene Expression Regulation, Humans, Intellectual Disability, Mutation, Nerve Tissue Proteins, Phenotype, Schizophrenia, Transcription Factors, Genetic Variation, Gene Deletion, Gene Duplication, Genetic Association Studies

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