Nonsense mutation in exon 3 of the proteolipid protein gene (PLP) in a family with an unusual form of pelizaeus-merzbacher disease

M. E. Hodes, C. A. Blank, V. M. Pratt, J. Morales, J. Napier, Stephen Dlouhy

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

We report a G→A transition at nucleotide 431 of the proteolipid protein gene (PLP) results in a nonsense codon in a family with an unusual form of Pelizaeus-Merzbacher disease (PMD). The mutation, which creates a second AluI restriction site, results in a nonsense mutation in PLP. The clinical picture resembles somewhat that of X-linked spastic paraplegia (SPG). It differs from this and both the classical and connatal forms of PMD in that it is relatively mild in form, onset is delayed beyond age 2 years, nystagmus is absent, tremors are prominent, mental retardation is not severe, some patients show dementia or personality disorders, the disease is progressive rather than static in some, and several females show signs of disease. The nonsense mutation, which is in exon 3B, should block the synthesis of normal PLP but spare DM20, the isoform whose persistence has been associated with mild forms of PLP.associated disease in both humans and mice.

Original languageEnglish
Pages (from-to)121-125
Number of pages5
JournalAmerican Journal of Medical Genetics
Volume69
Issue number2
DOIs
StatePublished - Mar 17 1997

Fingerprint

Pelizaeus-Merzbacher Disease
Proteolipids
Nonsense Codon
Exons
Proteins
Paraplegia
Personality Disorders
Tremor
Intellectual Disability
Dementia
Protein Isoforms
Nucleotides
Mutation

Keywords

  • nonsense mutation
  • Pelizaeus-Merzbacher disease
  • proteolipid protein
  • X- linked spastic paraplegia

ASJC Scopus subject areas

  • Genetics(clinical)

Cite this

Nonsense mutation in exon 3 of the proteolipid protein gene (PLP) in a family with an unusual form of pelizaeus-merzbacher disease. / Hodes, M. E.; Blank, C. A.; Pratt, V. M.; Morales, J.; Napier, J.; Dlouhy, Stephen.

In: American Journal of Medical Genetics, Vol. 69, No. 2, 17.03.1997, p. 121-125.

Research output: Contribution to journalArticle

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