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. 1991 Jul;49(1):7-16.

Defined physical limits of the Huntington disease gene candidate region

G P Bates  1 , M E MacDonald, S Baxendale, S Youngman, C Lin, W L Whaley, J J Wasmuth, J F Gusella, H Lehrach
Affiliations

Defined physical limits of the Huntington disease gene candidate region

G P Bates et al. Am J Hum Genet. 1991 Jul.

Abstract

The Huntington disease (HD) gene has been mapped 4 cM distal to D4S10 within the telomeric chromosome band, 4p16.3. The published physical map of this region extends from D4S10 to the telomere but contains two gaps of unknown size. Recombination events have been used to position the HD mutation with respect to genetic markers within this region, and one such event places the gene proximal to D4S168, excluding the distal gap as a possible location for the defect. One previously published recombination event appeared to have excluded the proximal gap. We have reassessed this event and have moved the proximal boundary for the HD candidate region centromeric to the gap within a "hot spot" for recombination between D4S10 and D4S125. We have closed the proximal gap and report here the complete physical map spanning the HD candidate region from D4S10 to D4S168, the maximum size of which can now be placed accurately at 2.5 Mb.

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