Cited by 123Genetics and Neurodevelopmental DisordersCellular transport and secretionGenomics and Rare Diseases

Mutations in the gene encoding the Sigma 2 subunit of the adaptor protein 1 complex, AP1S2, cause X-linked mental retardation

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Tarpey, Patrick S., Stevens, Claire, Teague, Jon, Edkins, Sarah, O’Meara, Sarah, Avis, Tim, Barthorpe, Syd, Buck, Gemma +41 more·2006·The American Journal of Human Genetics

Abstract

In a systematic sequencing screen of the coding exons of the X chromosome in 250 families with X-linked mental retardation (XLMR), we identified two nonsense mutations and one consensus splice-site mutation in the AP1S2 gene on Xp22 in three families. Affected individuals in these families showed mild-to-profound mental retardation. Other features included hypotonia early in life and delay in walking. AP1S2 encodes an adaptin protein that constitutes part of the adaptor protein complex found at the cytoplasmic face of coated vesicles located at the Golgi complex. The complex mediates the recruitment of clathrin to the vesicle membrane. Aberrant endocytic processing through disruption of adaptor protein complexes is likely to result from the AP1S2 mutations identified in the three XLMR-affected families, and such defects may plausibly cause abnormal synaptic development and function. AP1S2 is the first reported XLMR gene that encodes a protein directly involved in the assembly of endocytic vesicles.

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Crossref · 10.1086/510137

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  • Mutations in AP1S2 have been previously implicated in phenotypic features associated with autism spectrum disorder and X-linked mental retardation.

    “Interestingly, mutations in AP1S2 have been previously implicated in phenotypic features associated with ASD and X-linked mental retardation (Borck et al., 2008; Tarpey et al., 2006).”

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Authors
Tarpey, P. S., Stevens, C., Teague, J., Edkins, S., O’Meara, S., Avis, T., Barthorpe, S., Buck, G., Butler, A., Cole, J., Dicks, E., Gray, K., Halliday, K., Harrison, R., Hills, K., Hinton, J., Jones, D., Menzies, A., Mironenko, T., Perry, J., Raine, K., Richardson, D., Shepherd, R., Small, A., Tofts, C., Varian, J., West, S., Widaa, S., Yates, A., Catford, R., Butler, J., Mallya, U., Moon, J., Luo, Y., Dorkins, H., Thompson, D., Easton, D. F., Wooster, R., Bobrow, M., Carpenter, N., Simensen, R. J., Schwartz, C. E., Stevenson, R. E., Turner, G., Partington, M., Gecz, J., Stratton, M. R., Futreal, P. A., & Raymond, F. L.
Affiliations
  • Wellcome Sanger Institute (GB)
  • Women's and Children's Hospital (AU)
  • Greenwood Genetic Center (US)
  • University of Cambridge (GB)
  • Northwick Park Hospital (GB)
  • Cancer Research UK (GB)
  • Hunter Genetics (AU)
Corresponding author
Stratton, Michael R.
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2006-12
Volume
79
Issue
6
Pages
1119-1124
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2056485755
Cited by
123
References
17
Citations by year
2025: 3 · 2024: 4 · 2023: 6 · 2022: 10 · 2021: 2 · 2020: 5 · 2019: 10 · 2018: 5 · 2017: 3 · 2016: 5 · 2015: 5 · 2014: 13 · 2013: 4 · 2012: 6
FWCI
4.17
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
Funders
  • National Institute of Child Health and Human Development (HD26202)
  • Wellcome Trust
  • State Library of New South Wales
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
X-linked intellectual disability, nonsense mutation, splice site mutation, Xp22, clathrin-mediated endocytosis, Golgi apparatus, hypotonia, delayed walking, synaptic development, X chromosome
MeSH terms
Adult, Child, Female, Humans, Male, Mutation, Pedigree, Endosomes, Adaptor Protein Complex sigma Subunits, X-Linked Intellectual Disability

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