Regional localization of DNA sequences on chromosome 21 using somatic cell hybrids

M. L. van Keuren, P. C. Watkins, H. A. Drabkin, E. W. Jabs, J. F. Gusella, D. Patterson

Research output: Contribution to journalArticlepeer-review

Abstract

We have used a panel of Chinese hamster x human somatic cell hybrids, each containing various portions of chromosome 21 as the only detectable human chromosome component, for regional mapping of cloned, chromosome 21-derived DNA sequences. Thirty unique and very low-repeat sequences were mapped to the short arm and three sections of the long arm. Three unique sequences map to the proximal part of the terminal band 21q22.3, and five to the distal part of this band. Some of these may represent parts of gene sequences that may be relevant to the pathogenesis of Down syndrome, as 21q22 is the area required to be present in triplicate for the full clinical picture.

Original languageEnglish (US)
Pages (from-to)793-804
Number of pages12
JournalAmerican Journal of Human Genetics
Volume38
Issue number6
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Genetics

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