This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.Setleis Syndrome- Setleis syndrome (MIM 227260) is a rare disorder that was first described in 1963 in Puerto Rican patients, and is characterized by bitemporal scars resembling forceps marks, lateral deficiency of the eyebrows and outward, double-row eyelashes, wrinkling of facial skin, a bulbous nasal tip and nasal septum which extends below the alae nasi and thick protruding lips. Setleis syndrome has been shown to be an autosomal recessive disorder in most cases, and is frequently found in individuals born in the town of San Sebasti n, Puerto Rico. We have identified and received samples from 4 families with affected children with a clearly defined Setleis syndrome, through the collaboration with Dr. Alberto Santiago Cornier. Newspaper advertisement efforts to recruit additional families have been unsuccessful. Through Dr. Natalio Izquierdo of the Ophthalmology Department we were able to recruit one additional family in 2001. A more aggressive recruitment effort is necessary to obtain samples from at least 4 additional families with affected offspring to engage in a genome scan to map the Setleis gene. Dr. Richard A. Spritz, Director of the Human Medical Genetics Program at the University of Colorado Health Sciences Center, is extremely interested in this type of ectodermal dysplasia, and is willing to assist us in identifying the chromosomal location and affected gene. There was a brief report in the ASHG meeting last October that proposed that the Setleis gene was located at chromosome 1, 1p36. We have performed genotyping analysis of chromosome 1 microsatellite (STR) markers with the samples gathered so far. Below we include the text of an abstract we submitted for the 2001 International Conference in Human Genetics that summarizes our findings..
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