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YY1 Haploinsufficiency Causes an Intellectual Disability Syndrome Featuring Transcriptional and Chromatin Dysfunction

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  • Michele Gabriele
  • Anneke T Vulto-van Silfhout
  • Pierre-Luc Germain
  • Alessandro Vitriolo
  • Raman Kumar
  • Evelyn Douglas
  • Eric Haan
  • Kenjiro Kosaki
  • Toshiki Takenouchi
  • Anita Rauch
  • Katharina Steindl
  • Eirik Frengen
  • Doriana Misceo
  • Christeen Ramane J Pedurupillay
  • Petter Stromme
  • Jill A Rosenfeld
  • Yunru Shao
  • William J Craigen
  • Christian P Schaaf
  • David Rodriguez-Buritica
  • Laura Farach
  • Jennifer Friedman
  • Perla Thulin
  • Scott D McLean
  • Kimberly M Nugent
  • Jenny Morton
  • Jillian Nicholl
  • Joris Andrieux
  • Asbjørg Stray-Pedersen
  • Pascal Chambon
  • Sophie Patrier
  • Sally A Lynch
  • Susanne Kjaergaard
  • Pernille M Tørring
  • Charlotte Brasch-Andersen
  • Anne Ronan
  • Arie van Haeringen
  • Peter J Anderson
  • Zöe Powis
  • Han G Brunner
  • Rolph Pfundt
  • Janneke H M Schuurs-Hoeijmakers
  • Bregje W M van Bon
  • Stefan Lelieveld
  • Christian Gilissen
  • Willy M Nillesen
  • Lisenka E L M Vissers
  • Jozef Gecz
  • David A Koolen
  • Giuseppe Testa
  • Bert B A de Vries
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Yin and yang 1 (YY1) is a well-known zinc-finger transcription factor with crucial roles in normal development and malignancy. YY1 acts both as a repressor and as an activator of gene expression. We have identified 23 individuals with de novo mutations or deletions of YY1 and phenotypic features that define a syndrome of cognitive impairment, behavioral alterations, intrauterine growth restriction, feeding problems, and various congenital malformations. Our combined clinical and molecular data define "YY1 syndrome" as a haploinsufficiency syndrome. Through immunoprecipitation of YY1-bound chromatin from affected individuals' cells with antibodies recognizing both ends of the protein, we show that YY1 deletions and missense mutations lead to a global loss of YY1 binding with a preferential retention at high-occupancy sites. Finally, we uncover a widespread loss of H3K27 acetylation in particular on the YY1-bound enhancers, underscoring a crucial role for YY1 in enhancer regulation. Collectively, these results define a clinical syndrome caused by haploinsufficiency of YY1 through dysregulation of key transcriptional regulators.

Original languageEnglish
JournalAmerican Journal of Human Genetics
Volume100
Issue number6
Pages (from-to)907-925
Number of pages19
ISSN0002-9297
DOIs
Publication statusPublished - 1 Jun 2017

    Research areas

  • Acetylation, Adolescent, Base Sequence, Child, Preschool, Chromatin, Chromatin Immunoprecipitation, Cohort Studies, Enhancer Elements, Genetic, Female, Gene Ontology, Haploinsufficiency, Haplotypes, Hemizygote, Histones, Humans, Intellectual Disability, Lymphocytes, Male, Methylation, Models, Molecular, Mutation, Missense, Protein Binding, Protein Domains, Transcription, Genetic, YY1 Transcription Factor, Journal Article

ID: 52407958