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We have examined the status of the Wilms' tumor suppressor gene (WT1), residing at chromosome 11 band p13, in a total of 40 cancers of the female reproductive tract. Northern blot analysis revealed that the WT1 gene is expressed in a large percentage of ovarian tumors (75%) analyzed. Single-strand conformation polymorphism analysis was performed on all the tumors in this study in an attempt to detect mutations within the WT1 gene. Only silent mutations were detected within intron 7 of WT1 using this method. Loss of heterozygosity studies were performed at the WT1 locus in several ovarian tumors and revealed that in the informative cases, heterozygosity was retained.
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Bruening et al. (1993) studied this question.
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