Abstract:
:The chromosomal region 17q12-q21 contains a gene (BRCA1) conferring susceptibility to early-onset familial breast and ovarian cancer. An 8000-rad radiation-reduced hybrid (RH) panel was constructed to provide a resource for long-range mapping of this region. A large fraction of the hybrids (approximately 90%) retained detectable human chromosome 17 sequences. The complete panel of 76 hybrids was scored for the presence or absence of 22 markers from this chromosomal region, including 14 cloned genes, seven microsatellite repeats, and one anonymous DNA segment. Statistical analysis of the marker retention data employing multipoint methods provided both comprehensive and framework maps of this chromosomal region, including distance estimates between adjacent markers. The comprehensive RH map includes 17 loci and spans 179 cRays(8000). Likelihood ratios of at least 1000:1 support the 10-locus framework order: cen-D17S250-ERBB2-(THRA1, TOP2A)-D17S855-PPY-D17S190-MTBT1-GP3A++ +-BTR-D17S588-tel. The order obtained from RH mapping, when used in conjunction with other methods, will be useful in linkage analysis of breast cancer families and will facilitate the development of a physical map of this region.
journal_name
Genomicsjournal_title
Genomicsauthors
Abel KJ,Boehnke M,Prahalad M,Ho P,Flejter WL,Watkins M,VanderStoep J,Chandrasekharappa SC,Collins FS,Glover TWdoi
10.1006/geno.1993.1383subject
Has Abstract,Author List Incompletepub_date
1993-09-01 00:00:00pages
632-41issue
3eissn
0888-7543issn
1089-8646pii
S0888754383713832journal_volume
17pub_type
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