Identification of the Tuberous Sclerosis Gene TSC1 on Chromosome 9q34

Author:

Slegtenhorst Marjon van12345,Hoogt Ronald de12345,Hermans Caroline12345,Nellist Mark12345,Janssen Bart12345,Verhoef Senno12345,Lindhout Dick12345,Ouweland Ans van den12345,Halley Dicky12345,Young Janet12345,Burley Mariwyn12345,Jeremiah Steve12345,Woodward Karen12345,Nahmias Joseph12345,Fox Margaret12345,Ekong Rosemary12345,Osborne John12345,Wolfe Jonathan12345,Povey Sue12345,Snell Russell G.12345,Cheadle Jeremy P.12345,Jones Alistair C.12345,Tachataki Maria12345,Ravine David12345,Sampson Julian R.12345,Reeve Mary Pat12345,Richardson Paul12345,Wilmer Friederike12345,Munro Cheryl12345,Hawkins Trevor L.12345,Sepp Tiina12345,Ali Johari B. M.12345,Ward Susannah12345,Green Andrew J.12345,Yates John R. W.12345,Kwiatkowska Jolanta12345,Henske Elizabeth P.12345,Short M. Priscilla12345,Haines Jonathan H.12345,Jozwiak Sergiusz12345,Kwiatkowski David J.12345

Affiliation:

1. The TSC1 Consortium:

2. M. van Slegtenhorst, R. de Hoogt, C. Hermans, M. Nellist, B. Janssen, S. Verhoef, D. Lindhout, A. van den Ouweland, D. Halley, Department of Clinical Genetics, Erasmus University and University Hospital, Rotterdam, Netherlands.

3. J. Young, M. Burley, S. Jeremiah, K. Woodward, J. Nahmias, M. Fox, R. Ekong, J. Wolfe, S. Povey, MRC Human Biochemical Genetics Unit and Galton Laboratory, University College of London, London NW1 2HE, UK.

4. J. Osborne, University of Bath, Bath BA2 7AY, UK.

5. R. G. Snell, J. P. Cheadle, A. C. Jones, M. Tachataki, D. Ravine, J. R. Sampson, Institute of Medical Genetics, University of Wales College of Medicine, Cardiff CF4 4XN, Wales, UK.

Abstract

Tuberous sclerosis complex (TSC) is an autosomal dominant disorder characterized by the widespread development of distinctive tumors termed hamartomas. TSC-determining loci have been mapped to chromosomes 9q34 ( TSC1 ) and 16p13 ( TSC2 ). The TSC1 gene was identified from a 900-kilobase region containing at least 30 genes. The 8.6-kilobase TSC1 transcript is widely expressed and encodes a protein of 130 kilodaltons (hamartin) that has homology to a putative yeast protein of unknown function. Thirty-two distinct mutations were identified in TSC1 , 30 of which were truncating, and a single mutation (2105delAAAG) was seen in six apparently unrelated patients. In one of these six, a somatic mutation in the wild-type allele was found in a TSC-associated renal carcinoma, which suggests that hamartin acts as a tumor suppressor.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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