Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.

Although autism has a clear genetic component, the high genetic heterogeneity of the disorder has been a challenge for the identification of causative genes. We used homozygosity analysis to identify probands from nonconsanguineous families that showed evidence of distant shared ancestry, suggesting...

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Main Authors: Maria H Chahrour, Timothy W Yu, Elaine T Lim, Bulent Ataman, Michael E Coulter, R Sean Hill, Christine R Stevens, Christian R Schubert, ARRA Autism Sequencing Collaboration, Michael E Greenberg, Stacey B Gabriel, Christopher A Walsh
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC3325173?pdf=render
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author Maria H Chahrour
Timothy W Yu
Elaine T Lim
Bulent Ataman
Michael E Coulter
R Sean Hill
Christine R Stevens
Christian R Schubert
ARRA Autism Sequencing Collaboration
Michael E Greenberg
Stacey B Gabriel
Christopher A Walsh
author_facet Maria H Chahrour
Timothy W Yu
Elaine T Lim
Bulent Ataman
Michael E Coulter
R Sean Hill
Christine R Stevens
Christian R Schubert
ARRA Autism Sequencing Collaboration
Michael E Greenberg
Stacey B Gabriel
Christopher A Walsh
author_sort Maria H Chahrour
collection DOAJ
description Although autism has a clear genetic component, the high genetic heterogeneity of the disorder has been a challenge for the identification of causative genes. We used homozygosity analysis to identify probands from nonconsanguineous families that showed evidence of distant shared ancestry, suggesting potentially recessive mutations. Whole-exome sequencing of 16 probands revealed validated homozygous, potentially pathogenic recessive mutations that segregated perfectly with disease in 4/16 families. The candidate genes (UBE3B, CLTCL1, NCKAP5L, ZNF18) encode proteins involved in proteolysis, GTPase-mediated signaling, cytoskeletal organization, and other pathways. Furthermore, neuronal depolarization regulated the transcription of these genes, suggesting potential activity-dependent roles in neurons. We present a multidimensional strategy for filtering whole-exome sequence data to find candidate recessive mutations in autism, which may have broader applicability to other complex, heterogeneous disorders.
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spelling doaj.art-2902585976fa4160a7a77dc60c4d5f5a2022-12-21T17:43:15ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042012-01-0184e100263510.1371/journal.pgen.1002635Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.Maria H ChahrourTimothy W YuElaine T LimBulent AtamanMichael E CoulterR Sean HillChristine R StevensChristian R SchubertARRA Autism Sequencing CollaborationMichael E GreenbergStacey B GabrielChristopher A WalshAlthough autism has a clear genetic component, the high genetic heterogeneity of the disorder has been a challenge for the identification of causative genes. We used homozygosity analysis to identify probands from nonconsanguineous families that showed evidence of distant shared ancestry, suggesting potentially recessive mutations. Whole-exome sequencing of 16 probands revealed validated homozygous, potentially pathogenic recessive mutations that segregated perfectly with disease in 4/16 families. The candidate genes (UBE3B, CLTCL1, NCKAP5L, ZNF18) encode proteins involved in proteolysis, GTPase-mediated signaling, cytoskeletal organization, and other pathways. Furthermore, neuronal depolarization regulated the transcription of these genes, suggesting potential activity-dependent roles in neurons. We present a multidimensional strategy for filtering whole-exome sequence data to find candidate recessive mutations in autism, which may have broader applicability to other complex, heterogeneous disorders.http://europepmc.org/articles/PMC3325173?pdf=render
spellingShingle Maria H Chahrour
Timothy W Yu
Elaine T Lim
Bulent Ataman
Michael E Coulter
R Sean Hill
Christine R Stevens
Christian R Schubert
ARRA Autism Sequencing Collaboration
Michael E Greenberg
Stacey B Gabriel
Christopher A Walsh
Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.
PLoS Genetics
title Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.
title_full Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.
title_fullStr Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.
title_full_unstemmed Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.
title_short Whole-exome sequencing and homozygosity analysis implicate depolarization-regulated neuronal genes in autism.
title_sort whole exome sequencing and homozygosity analysis implicate depolarization regulated neuronal genes in autism
url http://europepmc.org/articles/PMC3325173?pdf=render
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