Abstract
Hereditary sensory neuropathy type I (HSN I) is a group of dominantly inherited degenerative disorders of peripheral nerve in which sensory features are more prominent than motor involvement. We have described a new form of HSN I that is associated with cough and gastroesophageal reflux. To map the chromosomal location of the gene causing the disorder, a 10-cM genome screen was undertaken in a large Australian family. Two-point analysis showed linkage to chromosome 3p22-p24 (Zmax = 3.51 at recombination fraction (θ) 0.0 for marker D3S2338). A second family with a similar phenotype shares a different disease haplotype but segregates at the same locus. Extended haplotype analysis has refined the region to a 3.42-cM interval, flanked by markers D3S2336 and D3S1266.
Original language | English |
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Pages (from-to) | 632-637 |
Number of pages | 6 |
Journal | American Journal of Human Genetics |
Volume | 73 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Sept 2003 |
Externally published | Yes |