Recessive variants in ZNF142 cause a complex neurodevelopmental disorder with intellectual disability, speech impairment, seizures, and dystonia

Kamal Khan, Michael Zech, Angela T. Morgan, David J. Amor, Matej Skorvanek, Tahir N. Khan, Michael S. Hildebrand, Victoria E. Jackson, Thomas S. Scerri, Matthew Coleman, Kristin A. Rigbye, Ingrid E. Scheffer, Melanie Bahlo, Matias Wagner, Daniel D. Lam, Riccardo Berutti, Petra Havránková, Anna Fečíková, Tim M. Strom, Vladimir HanPetra Dosekova, Zuzana Gdovinova, Franco Laccone, Muhammad Jameel, Marie R. Mooney, Shahid M. Baig, Robert Jech, Erica E. Davis, Nicholas Katsanis, Juliane Winkelmann

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Purpose: The purpose of this study was to expand the genetic architecture of neurodevelopmental disorders, and to characterize the clinical features of a novel cohort of affected individuals with variants in ZNF142, a C2H2 domain-containing transcription factor. Methods: Four independent research centers used exome sequencing to elucidate the genetic basis of neurodevelopmental phenotypes in four unrelated families. Following bioinformatic filtering, query of control data sets, and secondary variant confirmation, we aggregated findings using an online data sharing platform. We performed in-depth clinical phenotyping in all affected individuals. Results: We identified seven affected females in four pedigrees with likely pathogenic variants in ZNF142 that segregate with recessive disease. Affected cases in three families harbor either nonsense or frameshifting likely pathogenic variants predicted to undergo nonsense mediated decay. One additional trio bears ultrarare missense variants in conserved regions of ZNF142 that are predicted to be damaging to protein function. We performed clinical comparisons across our cohort and noted consistent presence of intellectual disability and speech impairment, with variable manifestation of seizures, tremor, and dystonia. Conclusion: Our aggregate data support a role for ZNF142 in nervous system development and add to the emergent list of zinc finger proteins that contribute to neurocognitive disorders.

Original languageEnglish
Pages (from-to)2532-2542
Number of pages11
JournalGenetics in Medicine
Volume21
Issue number11
DOIs
Publication statusPublished - 1 Nov 2019
Externally publishedYes

Keywords

  • ataxia
  • childhood apraxia of speech
  • developmental delay
  • dolichocephaly
  • homozygosity mapping

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