Huntington disease: No evidence for locus heterogeneity

P. Michael Conneally, Jonathan L. Haines, Rudolf E. Tanzi, Nancy S. Wexler, Graciela K. Penchaszadeh, Peter S. Harper, Susan E. Folstein, Jean J. Cassiman, Richard H. Myers, Anne B. Young, Michael R. Hayden, Arthur Falek, Eduardo S. Tolosa, Sebastian Crespi, Luigi Di Maio, Gosta Holmgren, Maria Anvret, Ichiro Kanazawa, James F. Gusella

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Abstract

A total of 63 families with Huntington disease (HD) were examined for linkage between HD and G8 (D4S10). The families included 57 Caucasian, four Black American, and two Japanese. The combined maximum lod score was 87.69 at θ = 0.04 (99% confidence interval 0.018-0.071). The maximum frequency of recombination was 0.03 in males and 0.05 in females. Fifty-seven families gave positive lod scores; five small families gave mildly negative lod scores. The maximum likelihood estimate of α, the proportion of linked loci, was 1.0 with a lower 99% confidence interval of 0.88. These data suggest that there is only one HD locus, although a second rare locus cannot be ruled out.

Original languageEnglish
Pages (from-to)304-308
Number of pages5
JournalGenomics
Volume5
Issue number2
DOIs
StatePublished - Jan 1 1989

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ASJC Scopus subject areas

  • Genetics

Cite this

Conneally, P. M., Haines, J. L., Tanzi, R. E., Wexler, N. S., Penchaszadeh, G. K., Harper, P. S., Folstein, S. E., Cassiman, J. J., Myers, R. H., Young, A. B., Hayden, M. R., Falek, A., Tolosa, E. S., Crespi, S., Di Maio, L., Holmgren, G., Anvret, M., Kanazawa, I., & Gusella, J. F. (1989). Huntington disease: No evidence for locus heterogeneity. Genomics, 5(2), 304-308. https://doi.org/10.1016/0888-7543(89)90062-1