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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Phenotype severity and genetic variation at the disease locus: an investigation of nail dysplasia in the nail patella syndrome.

The genetic bases underlying the range and severity of phenotypes in Mendelian disorders is poorly understood; however, improvements in this area have the potential to facilitate analysis of oligogenic disorders. The nail dysplasia observed in Nail Patella Syndrome (NPS) was selected as a quantifiable variable within a Mendelian disorder, for which data could be readily obtained, to allow investigation of the genetic basis of variation. Analysis of SNP haplotypes across the LMX1B gene demonstrated association between the haplotype of the mutant allele and the variability in the nail score (p = 0.024). These results are in contrast to those obtained previously, which supported a modifying role for the wild-type allele. Since there is no evidence that particular mutations, or classes of mutation, are associated with the variation (p > 0.5), further work is required to identify the elements associated with the LMX1B gene that mediate phenotypic severity.[1]

References

  1. Phenotype severity and genetic variation at the disease locus: an investigation of nail dysplasia in the nail patella syndrome. Dunston, J.A., Lin, S., Park, J.W., Malbroux, M., McIntosh, I. Ann. Hum. Genet. (2005) [Pubmed]
 
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