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A biallelic 36-bp insertion in PIBF1 is associated with Joubert syndrome.

Malavika HebbarAnil KanthiAnju ShuklaStephanie BielasKatta Mohan Girisha
Published in: Journal of human genetics (2018)
Biallelic pathogenic variants in PIBF1 have been identified as one of the genetic etiologies of Joubert syndrome. We report a two-year-old girl with global developmental delay, facial dysmorphism, hypotonia, enlarged cystic kidneys, molar tooth sign, and thinning of corpus callosum. A novel homozygous 36-bp insertion in PIBF1 (c.1181_1182ins36) was identified by exome sequencing as the likely cause of her condition. This is the second publication demonstrating the cause and effect relationship between PIBF1 and Joubert syndrome.
Keyphrases
  • copy number
  • case report
  • intellectual disability
  • genome wide
  • dna methylation