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  • Title: Microdissection of chromosome band 11p15.5: characterization of probes mapping distal to the HBBC locus.
    Author: Newsham I, Claussen U, Lüdecke HJ, Mason M, Senger G, Horsthemke B, Cavenee W.
    Journal: Genes Chromosomes Cancer; 1991 Mar; 3(2):108-16. PubMed ID: 1676905.
    Abstract:
    Both cytogenetic and molecular genetic analyses of the 11p15.5 subband suggest it may contain loci important in the genesis of a wide variety of tumors such as rhabdomyosarcomas and Wilms' tumors as well as the congenital tumors associated with the Beckwith-Wiedemann syndrome. As a first step in further defining the involvement of this chromosomal region in these various maladies, a library was constructed from the specific microdissection of chromosomal fragments representing 11p15.5-pter. Of 98 microclones analyzed, 31 identified single copy human DNA sequences, 21 of which mapped to 11p15.5 while 10 mapped proximal to the HBBC locus. Five of the 11p15.5-positioned microprobes detected restriction fragment length polymorphisms at their homologous genomic loci for various enzymes. These microprobes are now being utilized in several ways in order to address the underlying basis of the Beckwith-Wiedemann syndrome and its associated tumors.
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