Human Molecular Genetics, Vol 5, 139-143, Copyright © 1996 by Oxford University Press
LJ Hu, J Laporte, W Kress, P Kioschis, R Siebenhaar, A Poustka, M Fardeau, A Metzenberg, EA Janssen, N Thomas, JL Mandel and N Dahl
We have recently described a female patient with myotubular myopathy (MTM1)
and an interstitial deletion at Xq28. Characterisation of the deletion
allowed us to position the MTM1 gene to a 600 kb region between DXS304 and
DXS497. In order to further restrict the region we screened for deletions
in a set of 38 patients. We found two overlapping deletions in boys that in
addition to MTM1 showed an unexpected abnormal genital development. As the
latter phenotype is not found in the other non-deleted MTM1 patients, our
observations are best explained by a contiguous gene syndrome. The
deletions define a 430 kb region that contains the MTM1 gene and most
likely a gene implicated in male sexual development. A high resolution
physical map of this region is presented.
ARTICLES
Deletions in Xq28 in two boys with myotubular myopathy and abnormal genital development define a new contiguous gene syndrome in a 430 kb region
Institut de Genetique et de Biologie Moleculaire et Cellulaire, CNRS/INSERM/ULP, Strasbourg, France.
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