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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Tanner, M.M. et al.

Increased copy number at 20q13 in breast cancer: defining the critical region and exclusion of candidate genes.

Studies by comparative genomic hybridization have indicated that a major new locus for DNA amplification in breast cancer is 20q13 and suggested that this genetic event is associated with aggressive clinical behavior. We used interphase fluorescence in situ hybridization with anonymous cosmid probes and gene-specific P1 clones to determine the minimal common region of increased copy number and to study involvement of known genes at 20q13. Based on high-level copy number increases (3 to 10-fold) found with one or more probes in 5 of 14 (35%) breast cancer cell lines and in 3 of 36 (8%) primary tumors, the critical region was narrowed to approximately 1.5 megabases at 20q13.2 defined by fractional length pter values 0.81-0.84. Previously known genes were excluded as candidates, implying that this chromosomal region harbors a novel oncogene that contributes to the malignant progression of breast cancer.[1]

References

Increased copy number at 20q13 in breast cancer: defining the critical region and exclusion of candidate genes. Tanner, M.M., Tirkkonen, M., Kallioniemi, A., Collins, C., Stokke, T., Karhu, R., Kowbel, D., Shadravan, F., Hintz, M., Kuo, W.L. Cancer Res. (1994) [Pubmed]

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