The peripheral myelin gene PMP–22/GAS–3 is duplicated in Charcot–Marie–Tooth disease type 1A (original) (raw)

Nature Genetics volume 1, pages 166–170 (1992)Cite this article

Abstract

Charcot–Marie–Tooth disease type 1A (CMT1A) is associated with a DNA duplication at chromosome 17p11.2. In view of the point mutation in the gene for peripheral myelin protein pmp–22/gas–3 in Trembler mice, a murine model for CMT1A, we have analysed whether this gene is altered in CMT1A. Here we show that the human homologue of the murine pmp–22 gene is located within the CMT1A DNA duplication, which is a direct repeat and does not interrupt the coding region of PMP–22. Expression of PMP–22 in CMT1A fibroblasts is similar to expression in control fibroblasts. Increased gene dosage or altered PMP–22 expression in the peripheral nervous system are therefore possible mechanisms by which PMP–22 is involved in CMT1A.

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Authors and Affiliations

  1. Department of Neurology K2-206, Academical Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
    L. J. Valentijn, P. A. Bolhuis, I. Zorn, J. E. Hoogendijk, N. van den Bosch, G. W. Hensels & F. Baas
  2. Massachusetts Institute of Technology, Center for Cancer Research, 77 Massachusetts Avenue, E17-536, Cambridge, Massachusetts, 02139, USA
    V. P. Stanton Jr. & D. E. Housman
  3. Department of Neurology, University of Pennsylvania, School of Medicine, 422 Curie Boulevard, Philadelphia, Pennsylvania, 19104–6146, USA
    K. H. Fischbeck
  4. Department of Medicine, University of Sydney, Clinical Sciences Building, Concord Hospital, Sydney, Australia
    D. A. Ross & G. A. Nicholson
  5. Department of Human Genetics, State University Leiden, Sylvius Laboratories, Wassenaarsweg 72, 2333 AL, Leiden, The Netherlands
    E. J. Meershoek, H. G. Dauwerse & G. -J. B. van Ommen

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  1. L. J. Valentijn
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  2. P. A. Bolhuis
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  3. I. Zorn
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  4. J. E. Hoogendijk
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  5. N. van den Bosch
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  6. G. W. Hensels
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  7. V. P. Stanton Jr.
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  8. D. E. Housman
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  9. K. H. Fischbeck
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  10. D. A. Ross
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  11. G. A. Nicholson
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  12. E. J. Meershoek
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  13. H. G. Dauwerse
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  14. G. -J. B. van Ommen
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  15. F. Baas
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Valentijn, L., Bolhuis, P., Zorn, I. et al. The peripheral myelin gene PMP–22/GAS–3 is duplicated in Charcot–Marie–Tooth disease type 1A.Nat Genet 1, 166–170 (1992). https://doi.org/10.1038/ng0692-166

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