Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/183886
Title: | Full-length isoform transcriptome of the developing human brain provides further insights into autism. |
Author: | Chau, Kevin K. Zhang, Pan Urresti, Jorge Amar, Megha Pramod, Akula Bala Chen, Jiaye Thomas, Amy Corominas Castiñeira, Roser Lin, Guan Ning Iakoucheva, Lilia M. |
Keywords: | Autisme Isoenzims Autism Isoenzymes |
Issue Date: | 31-Aug-2021 |
Publisher: | Elsevier |
Abstract: | Alternative splicing plays an important role in brain development, but its global contribution to human neurodevelopmental diseases (NDDs) requires further investigation. Here we examine the relationships between splicing isoform expression in the brain and de novo loss-of-function mutations from individuals with NDDs. We analyze the full-length isoform transcriptome of the developing human brain and observe differentially expressed isoforms and isoform co-expression modules undetectable by gene-level analyses. These isoforms are enriched in loss-of-function mutations and microexons, are co-expressed with a unique set of partners, and have higher prenatal expression. We experimentally test the effect of splice-site mutations and demonstrate exon skipping in five NDD risk genes, including SCN2A, DYRK1A, and BTRC. Our results suggest that the splice site mutation in BTRC reduces translational efficiency, likely affecting Wnt signaling through impaired degradation of β-catenin. We propose that functional effects of mutations should be investigated at the isoform- rather than gene-level resolution. |
Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.celrep.2021.109631 |
It is part of: | Cell Reports, 2021, vol. 36, num. 109631, p. 1-13 |
URI: | http://hdl.handle.net/2445/183886 |
Related resource: | https://doi.org/10.1016/j.celrep.2021.109631 |
ISSN: | 2211-1247 |
Appears in Collections: | Articles publicats en revistes (Genètica, Microbiologia i Estadística) |
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