2. Academic Validation
  3. Variants in the transcriptional corepressor BCORL1 are associated with an X-linked disorder of intellectual disability, dysmorphic features, and behavioral abnormalities

Variants in the transcriptional corepressor BCORL1 are associated with an X-linked disorder of intellectual disability, dysmorphic features, and behavioral abnormalities

  • Am J Med Genet A. 2019 May;179(5):870-874. doi: 10.1002/ajmg.a.61118.
Anju Shukla 1,  Katta M Girisha 1,  Puneeth H Somashekar 1,  Sheela Nampoothiri 2,  Rebecca McClellan 3,  Hilary J Vernon 3 4
Affiliations

Affiliations

  • 1 Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.
  • 2 Department of Paediatric Genetics, Amrita Institute of Medical Sciences & Research Centre, Cochin, India.
  • 3 Department of Neurogenetics, Kennedy Krieger Institute, Baltimore, Maryland.
  • 4 Department of Pediatrics, Johns Hopkins University, Baltimore, Maryland.
PMID: 30941876 DOI: 10.1002/ajmg.a.61118
Abstract

BCORL1, a transcriptional corepressor, is involved in negative gene regulation through associations with several protein complexes including Class II histone deacetylases (HDACs). Acquired somatic mutations in BCORL1 have been implicated in the pathogenesis of several malignancies, but germline mutations of BCORL1 have not been associated with a specific genetic syndrome. We report five individuals from three pedigrees with phenotypes including intellectual disability, behavioral difficulties, and dysmorphic features who were found via whole exome sequencing to have variants in BCORL1. In silico analysis of these variants strongly suggests pathogenicity. We propose that hemizygous pathogenic variants in BCORL1 underlie a newly identified X-linked epigenetic syndrome.

Keywords

X-linked; corepressor; epigenetic; intellectual disability.

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