Gatti RA, Lange E, Rotman G, Chen X, Uhrhammer N, Liang T, Chiplunkar S, Yang L, Udar N, Dandekar S, Sheikhavandi S, Wang Z, Yang HM, Polikow J, Elashoff M, Teletar M, Sanal O, Chessa L, McConville C, Taylor M, Shiloh Y, Porras O, Borresen AL, Wegner RD, Curry C, Gerken S, Lange K, Concannon P. Genetic haplotyping of ataxia-telangiectasia families localizes the major gene to an approximately 850 kb region on chromosome 11q23.1.
Int J Radiat Biol 1995. [PMID:
7836853 DOI:
10.1080/09553009414551861]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The genotyping data given localize the major A-T gene to an approximately 850 kb region. They also localize the group A A-T gene (ATA) to a region that contains the approximately 850 kb region. They are compatible with linking A-TFresno to 11q22-23. NBS-V2 does not link to this region. Four non-linking families contain only single affecteds, suggesting that these may be spontaneous mutations rather than evidence for an A-T gene outside the 11q22-23 region. Finally, two other non-linking families contain recombinant haplotypes that are compatible with a second A-T gene at 11q22-23, slightly distal to the approximately 850 kb region. However, convincing evidence for a second gene is still lacking.
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