KCTD7-related progressive myoclonic epilepsy: Report of three Indian families and review of literature

Dhanya Lakshmi Narayanan, Puneeth H. Somashekar, Purvi Majethia, Anju Shukla

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)


Epilepsy, progressive myoclonic 3, with or without intracellular inclusions (MIM# 611726) is a rare autosomal recessive condition associated with pathogenic variants in KCTD7, which encodes the BR-C,ttk and bab/pox virus and zinc finger domain-containing KCTD7 protein. We report four individuals from three Indian families presenting with an initial period of normal development, progressive myoclonic seizures followed by neuroregression and an abnormal electroencephalogram. We identified two novel missense variants, c.458G>C p.(Arg153Pro) and c.205C>G p.(Leu69Val) and one known disease-causing variant, c.280C>T p.(Arg94Trp) in KCTD7 by exome sequencing. We review the literature of 67 individuals with variants in KCTD7. Our study expands the molecular spectrum of KCTD7-related progressive myoclonic epilepsy.

Original languageEnglish
Pages (from-to)6-10
Number of pages5
JournalClinical Dysmorphology
Issue number1
Publication statusPublished - 01-01-2022

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Anatomy
  • Pathology and Forensic Medicine
  • Genetics(clinical)


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