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Molecular characterization of ataxia telangiectasia T cell clones

โœ Scribed by Fangrong Zhang; Marc-Henri Stern; Gilles Thomas; Alain Aurias

Publisher
Springer
Year
1988
Tongue
English
Weight
361 KB
Volume
78
Category
Article
ISSN
0340-6717

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โœฆ Synopsis

We compared inversions of chromosome 14 in an ataxia telangiectasia clone and in a malignant T cell line (SUP-T1). The R-banding chromosome analysis showed a clear difference between the distal breakpoint of the two inversions. Fine mapping of the distal breakpoint in the ataxia telangiectasia inv(14) was performed by in situ hybridization. We conclude that this breakpoint is centromeric to the immunoglobulin heavy chain locus and to the D14S1 anonymous locus. Our results favor the existence of an unknown oncogene in band 14q32.1.

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Molecular characterization of ataxia tel
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โœ Marc-Henri Stern; Fangrong Zhang; Gilles Thomas; Claude Griscelli; Alain Aurias ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Springer ๐ŸŒ English โš– 539 KB

To delimit the 14q32.1 recurrent breakpoint of ataxia telangiectasia clones, we performed an in situ hybridization study with various probes located on the 14q32 band. We thus mapped this breakpoint between the D14S1 and Pi loci. Furthermore, an interstitial duplication including D14S1 and a part of

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Using in situ chromosomal hybridization we have mapped the gene for the T-cell receptor alpha-chain in three different non-malignant T-cell clones occurring in ataxia telangiectasia. The constant region was translocated in each of the three clones. The variable region remained in its original positi

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Six adjacent metaphases, each with the same cytogenetic aberration of a group D chromosome, most probably a No. 14, were observed in a field of a slide from a 96-hour culture of lymphocytes from an individual with ataxia-telangiectasia (AT). None of the 304 other metaphases examined from this or oth