Ataxic form of autosomal recessive PEX10-related peroxisome biogenesis disorders with a novel compound heterozygous gene mutation and characteristic clinical phenotype

Toru Yamashita, Jun Mitsui, Nobuyuki Shimozawa, Shigeo Takashima, Hiroshi Umemura, Kota Sato, Mami Takemoto, Nozomi Hishikawa, Yasuyuki Ohta, Takashi Matsukawa, Hiroyuki Ishiura, Jun Yoshimura, Koichiro Doi, Shinichi Morishita, Shoji Tsuji, Koji Abe

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Peroxisome biogenesis factor 10 (PEX10) is involved in the import of peroxisomal matrix proteins, and the mutation of this gene causes 3 subtypes of peroxisome biogenesis disorders, namely Zellweger syndrome (severe), neonatal adrenoleukodystrophy (moderate) and an ataxic form (mild). Here, we report 3 siblings of the ataxic form with cerebellar ataxia, mild mental retardation, and 3 additional characteristic features: mydriasis, hyperreflexia and involuntary head movement. All 3 siblings are compound heterozygous for a previously reported mutation, c.2T > C (p.M1T), and a novel mutation, c.920G > A, causing a missense change (p.C307Y) located in the RING finger domain of PEX10. The present cases suggest that these PEX10 mutations involve not only cerebellar but also more multiple nervous systems including pupillary autonomic, pyramidal and extrapyramidal systems.

Original languageEnglish
Pages (from-to)424-429
Number of pages6
JournalJournal of the neurological sciences
Volume375
DOIs
Publication statusPublished - Apr 15 2017

Keywords

  • Cerebellar ataxia
  • Compound heterozygote
  • Peroxisome biogenesis disorder
  • Peroxisome biogenesis factor 10 (PEX10)
  • Point mutation
  • Zellweger syndrome

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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