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American Journal of Human Genetics logoLink to American Journal of Human Genetics
. 1993 Jun;52(6):1053–1056.

Linkage of a new mutation in the proteolipid protein (PLP) gene to Pelizaeus-Merzbacher disease (PMD) in a large Finnish kindred.

V M Pratt 1, J R Kiefer 1, J Lähdetie 1, J Schleutker 1, M E Hodes 1, S R Dlouhy 1
PMCID: PMC1682291  PMID: 7684886

Abstract

The purpose of this study was to confirm linkage of the proteolipid protein gene (PLP) and Pelizaeus-Merzbacher disease (PMD). A T-->A transversion in nucleotide pair 35 of exon 4 of PLP was found in a large Finnish kindred with PMD. This mutation results in the substitution Val165-->Glu165. We used a combination of single-strand conformational polymorphism and PCR primer extension to determine the presence or absence of the point mutation in family members. A lod score of 2.6 (theta = 0) was found for linkage of the gene and the disease. We examined 101 unrelated X chromosomes and found none with the transversion. This is the second report of linkage of PMD to a missense mutation in PLP. These findings support the hypothesis that PMD in this family is a result of the missense mutation present in exon 4 of PLP.

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Selected References

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