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Cancer-associated chromosomal aberrations often involve regions containing fragile sites. FRA7G is a common aphidicolin-inducible fragile site at 7q31.2, showing loss of heterozygosity in human malignancies. To investigate the structure of FRA7G, we constructed a bacterial artificial chromosome contig spanning the region between marker D7S486 and Met H. Analysis of the FRA7G sequence allowed us to...
Two distinct regions of loss of heterozygosity (LOH) in breast carcinomas were previously identified at chromosome 11q23. With the aim of identifying a tumor suppressor gene, we undertook the isolation and characterization of genes within LOH region 2, defined between lociD11S1345andD11S1316,which spans an area of about 1 Mb. Here, we describe the cloning and characterization of a new gene,ZNF202...
Deletions at chromosome 11q23 are frequent events in a variety of human neoplasms, including breast, lung, and ovarian carcinomas. Two common regions of loss of heterozygosity, shared between lung and breast carcinomas, have been previously identified at 11q23, suggesting that the same tumor susceptibility genes are altered in these two malignancies. One of these regions, refined in lung adenocarcinoma,...
Transaldolase (TAL) is a key enzyme of the pentose phosphate pathway, which is responsible for generation of reducing equivalents to protect cellular integrity from reactive oxygen intermediates. While exons 2 and 3 are highly repetitive, the complete TAL-H gene is mapped to a single genomic locus (TALDO1 2 ) by several independent approaches. Southern blot hybridization of a 827-bp 3′EcoRI...
Apoptosis may involve a specialized proteolytic cascade catalyzed by interleukin-1β-converting enzyme-like proteases. We have recently identified three new members of this family (CPP32, MCH2, MCH3) and shown that they play an important role in promoting cell death. Here we report the chromosomal mapping of CPP32 to 4q34, MCH2 to 4q25, and MCH3 to 10q25.
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