© 1995 Oxford University Press
RESEARCH-ARTICLE |
A gene for ulnarmammary syndrome maps to 1 2q23q24.1
Division of Medical Genetics, Department of Pediatrics, Health Sciences Center 50 North Medical Drive University of Utah Salt Lake City, UT 84132-1001 1Department of Human Genetics, University of Utah Health Sciences Center Salt Lake City, UT 84112, USA
*To whom correspondence should be addressed
Received June 8, 1995; Revised July 20, 1995; Accepted July 20, 1995
Uinarmammary syndrome (UMS) is an autosomal dominant disorder characterized by posterior limb deficiencies or duplications, apocrine/mammary gland hypoplasla and/or dysfunction, abnormal dentition, delayed puberty and genital anomalies. We report the mapping of a gene causing UMS to chromosome 1 2q2324.1. Linkage analysis generated a positive lod score of 6.21 at
= 0.00 with the marker D12S79, and recombinants bracket the UMS gene to a 21 cM region. This region contains a locus for HaltOram syndrome (HOS) suggesting that the genes for UMS and HOS may be allelic or closely linked. The identification of the gene causing UMS will be an important step toward understanding the molecular mechanisms that control limb and apocrine gland development.
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