Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.

During CNS development, the nuclear protein SATB2 is expressed in superficial cortical layers and determines projection neuron identity. In the adult CNS, SATB2 is expressed in pyramidal neurons of all cortical layers and is a regulator of synaptic plasticity and long-term memory. Common variation i...

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Main Authors: Isabella Cera, Laura Whitton, Gary Donohoe, Derek W Morris, Georg Dechant, Galina Apostolova
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-02-01
Series:PLoS Genetics
Online Access:https://doi.org/10.1371/journal.pgen.1007890
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author Isabella Cera
Laura Whitton
Gary Donohoe
Derek W Morris
Georg Dechant
Galina Apostolova
author_facet Isabella Cera
Laura Whitton
Gary Donohoe
Derek W Morris
Georg Dechant
Galina Apostolova
author_sort Isabella Cera
collection DOAJ
description During CNS development, the nuclear protein SATB2 is expressed in superficial cortical layers and determines projection neuron identity. In the adult CNS, SATB2 is expressed in pyramidal neurons of all cortical layers and is a regulator of synaptic plasticity and long-term memory. Common variation in SATB2 locus confers risk of schizophrenia, whereas rare, de novo structural and single nucleotide variants cause severe intellectual disability and absent or limited speech. To characterize differences in SATB2 molecular function in developing vs adult neocortex, we isolated SATB2 protein interactomes at the two ontogenetic stages and identified multiple novel SATB2 interactors. SATB2 interactomes are highly enriched for proteins that stabilize de novo chromatin loops. The comparison between the neonatal and adult SATB2 protein complexes indicates a developmental shift in SATB2 molecular function, from transcriptional repression towards organization of chromosomal superstructure. Accordingly, gene sets regulated by SATB2 in the neocortex of neonatal and adult mice show limited overlap. Genes encoding SATB2 protein interactors were grouped for gene set analysis of human GWAS data. Common variants associated with human cognitive ability are enriched within the genes encoding adult but not neonatal SATB2 interactors. Our data support a shift in the function of SATB2 in cortex over lifetime and indicate that regulation of spatial chromatin architecture by the SATB2 interactome contributes to cognitive function in the general population.
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spelling doaj.art-1bed413d48f84f28af46809cf793161b2022-12-21T19:13:18ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042019-02-01152e100789010.1371/journal.pgen.1007890Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.Isabella CeraLaura WhittonGary DonohoeDerek W MorrisGeorg DechantGalina ApostolovaDuring CNS development, the nuclear protein SATB2 is expressed in superficial cortical layers and determines projection neuron identity. In the adult CNS, SATB2 is expressed in pyramidal neurons of all cortical layers and is a regulator of synaptic plasticity and long-term memory. Common variation in SATB2 locus confers risk of schizophrenia, whereas rare, de novo structural and single nucleotide variants cause severe intellectual disability and absent or limited speech. To characterize differences in SATB2 molecular function in developing vs adult neocortex, we isolated SATB2 protein interactomes at the two ontogenetic stages and identified multiple novel SATB2 interactors. SATB2 interactomes are highly enriched for proteins that stabilize de novo chromatin loops. The comparison between the neonatal and adult SATB2 protein complexes indicates a developmental shift in SATB2 molecular function, from transcriptional repression towards organization of chromosomal superstructure. Accordingly, gene sets regulated by SATB2 in the neocortex of neonatal and adult mice show limited overlap. Genes encoding SATB2 protein interactors were grouped for gene set analysis of human GWAS data. Common variants associated with human cognitive ability are enriched within the genes encoding adult but not neonatal SATB2 interactors. Our data support a shift in the function of SATB2 in cortex over lifetime and indicate that regulation of spatial chromatin architecture by the SATB2 interactome contributes to cognitive function in the general population.https://doi.org/10.1371/journal.pgen.1007890
spellingShingle Isabella Cera
Laura Whitton
Gary Donohoe
Derek W Morris
Georg Dechant
Galina Apostolova
Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.
PLoS Genetics
title Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.
title_full Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.
title_fullStr Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.
title_full_unstemmed Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.
title_short Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.
title_sort genes encoding satb2 interacting proteins in adult cerebral cortex contribute to human cognitive ability
url https://doi.org/10.1371/journal.pgen.1007890
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