Identification of a highly polymorphic microsatellite VNTR within the argininosuccinate synthetase locus: Exclusion of the dystonia gene on 9q32-34 as the cause of dopa-responsive dystonia in a large kindred

D. J. Kwiatkowski; T. G. Nygaard; D. E. Schuback; S. Perman; J. M. Trugman; S. B. Bressman; R. E. Burke; M. F. Brin; L. Ozelius; X. O. Breakefield; S. Fahn; P. L. Kramer

Identification of a highly polymorphic microsatellite VNTR within the argininosuccinate synthetase locus: Exclusion of the dystonia gene on 9q32-34 as the cause of dopa-responsive dystonia in a large kindred

D. J. Kwiatkowski, T. G. Nygaard, D. E. Schuback, S. Perman, J. M. Trugman, S. B. Bressman, R. E. Burke, M. F. Brin, L. Ozelius, X. O. Breakefield, S. Fahn, P. L. Kramer

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Dopa-responsive dystonia is a clinical variant of idiopathic torsion dystonia that is distinguished from other forms of dystonia by the frequent cooccurrence of parkinsonism, diurnal fluctuation of symptoms, and its dramatic therapeutic response to L-dopa. Linkage of a gene causing classic dystonia in a large non-Jewish kindred (DYT1) and in a group of Ashkenazi Jewish families, to the gelsolin (GSN) and argininosuccinate synthetase (ASS) loci on chromosome 9q32-34, respectively, was recently determined. Here we report the discovery of a highly informative (GT)n repeat VNTR polymorphism within the ASS locus. Analysis of a large kindred with dopa-responsive dystonia, using this new polymorphism and conventional RFLPs for the 9q32-34 region, excludes loci in this region as a cause of this form of dystonia. This provides proof of genetic heterogeneity between classic idiopathic torsion dystonia and dopa-responsive dystonia.

Original language	English (US)
Pages (from-to)	121-128
Number of pages	8
Journal	American Journal of Human Genetics
Volume	48
Issue number	1
State	Published - 1991
Externally published	Yes

ASJC Scopus subject areas

Genetics
Genetics(clinical)

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Kwiatkowski, D. J., Nygaard, T. G., Schuback, D. E., Perman, S., Trugman, J. M., Bressman, S. B., Burke, R. E., Brin, M. F., Ozelius, L., Breakefield, X. O., Fahn, S., & Kramer, P. L. (1991). Identification of a highly polymorphic microsatellite VNTR within the argininosuccinate synthetase locus: Exclusion of the dystonia gene on 9q32-34 as the cause of dopa-responsive dystonia in a large kindred. American Journal of Human Genetics, 48(1), 121-128.

Identification of a highly polymorphic microsatellite VNTR within the argininosuccinate synthetase locus: Exclusion of the dystonia gene on 9q32-34 as the cause of dopa-responsive dystonia in a large kindred. / Kwiatkowski, D. J.; Nygaard, T. G.; Schuback, D. E. et al.
In: American Journal of Human Genetics, Vol. 48, No. 1, 1991, p. 121-128.

Research output: Contribution to journal › Article › peer-review

Kwiatkowski, DJ, Nygaard, TG, Schuback, DE, Perman, S, Trugman, JM, Bressman, SB, Burke, RE, Brin, MF, Ozelius, L, Breakefield, XO, Fahn, S & Kramer, PL 1991, 'Identification of a highly polymorphic microsatellite VNTR within the argininosuccinate synthetase locus: Exclusion of the dystonia gene on 9q32-34 as the cause of dopa-responsive dystonia in a large kindred', American Journal of Human Genetics, vol. 48, no. 1, pp. 121-128.

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abstract = "Dopa-responsive dystonia is a clinical variant of idiopathic torsion dystonia that is distinguished from other forms of dystonia by the frequent cooccurrence of parkinsonism, diurnal fluctuation of symptoms, and its dramatic therapeutic response to L-dopa. Linkage of a gene causing classic dystonia in a large non-Jewish kindred (DYT1) and in a group of Ashkenazi Jewish families, to the gelsolin (GSN) and argininosuccinate synthetase (ASS) loci on chromosome 9q32-34, respectively, was recently determined. Here we report the discovery of a highly informative (GT)n repeat VNTR polymorphism within the ASS locus. Analysis of a large kindred with dopa-responsive dystonia, using this new polymorphism and conventional RFLPs for the 9q32-34 region, excludes loci in this region as a cause of this form of dystonia. This provides proof of genetic heterogeneity between classic idiopathic torsion dystonia and dopa-responsive dystonia.",

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AB - Dopa-responsive dystonia is a clinical variant of idiopathic torsion dystonia that is distinguished from other forms of dystonia by the frequent cooccurrence of parkinsonism, diurnal fluctuation of symptoms, and its dramatic therapeutic response to L-dopa. Linkage of a gene causing classic dystonia in a large non-Jewish kindred (DYT1) and in a group of Ashkenazi Jewish families, to the gelsolin (GSN) and argininosuccinate synthetase (ASS) loci on chromosome 9q32-34, respectively, was recently determined. Here we report the discovery of a highly informative (GT)n repeat VNTR polymorphism within the ASS locus. Analysis of a large kindred with dopa-responsive dystonia, using this new polymorphism and conventional RFLPs for the 9q32-34 region, excludes loci in this region as a cause of this form of dystonia. This provides proof of genetic heterogeneity between classic idiopathic torsion dystonia and dopa-responsive dystonia.

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Identification of a highly polymorphic microsatellite VNTR within the argininosuccinate synthetase locus: Exclusion of the dystonia gene on 9q32-34 as the cause of dopa-responsive dystonia in a large kindred

Abstract

ASJC Scopus subject areas

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